Page 3 - Table of Contents
Table of Contents 1 Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2.1 WARNINGS . . . . . . . . . . . . . . . . . . . . . ...
Page 6 - Figures
iv Figures Figure 1 9140 Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 2 9140 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 3 Inserts available for the 9140 block assembly . . . . . . . . . . . . . . 15 Figure 4 Controller Operation ...
Page 7 - Tables; Table 1
v Tables Table 1 International Electrical Symbols . . . . . . . . . . . . . . . . . . . . . 1 Table 2 9140 controller communications commands . . . . . . . . . . . . . . . 36 Table 3 9140 controller communications commands continued . . . . . . . . . 37
Page 8 - Symbols Used
1 Before You Start 1.1 Symbols Used Table 1 lists the symbols used on the instrument or in this manual and themeaning of each symbol. Symbol Description AC (Alternating Current) AC-DC Battery Complies with European Union directives DC Double Insulated Electric Shock Fuse PE Ground Hot Surface (Burn ...
Page 9 - Safety Information; WARNINGS; GENERAL
Symbol Description Canadian Standards Association OVERVOLTAGE (Installation) CATEGORY II, Pollution Degree 2 per IEC1010-1 re-fers to the level of Impulse Withstand Voltage protection provided. Equipment ofOVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied fromthe fixed installatio...
Page 11 - CAUTIONS
ELECTRICAL SHOCK • These guidelines must be followed to ensure that the safety mechanismsin this instrument will operate properly. This instrument must be pluggedinto a 115 VAC, 60Hz (230 VAC, 50Hz optional), AC only electric outlet.The power cord of the instrument is equipped with a three-prongedgr...
Page 12 - operate this instrument in an excessively wet, oily, dusty, or; 99 E. Utah Valley Drive
• The instrument and any thermometer probes used with it are sensitive in-struments that can be easily damaged. Always handle these devices withcare. DO NOT allow them to be dropped, struck, stressed, or overheated. • The Factory Reset Sequence (see Section 12.1, Troubleshooting) shouldbe performed ...
Page 15 - Environmental Conditions
3 Specifications and EnvironmentalConditions 3.1 Specifications The following table lists the specifications for this instrument. Accuracy speci-fications are applicable for a one-year calibration interval. In line with normalprudent metrology practices, Hart Scientific recommends a short-cycle inte...
Page 16 - Warranty
operated in an excessively dusty or dirty environment. Maintenance and clean-ing recommendations can be found in the Maintenance Section of this manual. The instrument operates safely under the following conditions: • temperature range: 5–50°C (41–122°F) • ambient relative humidity: 15–50% • pressur...
Page 17 - Unpacking; Power
4 Quick Start 4.1 Unpacking Unpack the dry-well carefully and inspect it for any damage that may have oc-curred during shipment. If there is shipping damage, notify the carrierimmediately. Verify that the following components are present: • 9140 Dry-well • Insert • Insert Removal Tool • Power Cord •...
Page 18 - Setting the Temperature
dry-well will turn on and begin to heat to the previously programmed tempera-ture set-point. The front panel LED display will indicate the actual dry-welltemperature. 4.4 Setting the Temperature Section 7.2 explains in detail how to set the temperature set-point on the cali-brator using the front pa...
Page 19 - Rear Panel; Power Cord
5 Parts and Controls The user should become familiar with the dry-well calibrator and its parts: 5.1 Rear Panel Figure 1 on page 13. Power Cord - At the rear of the calibrator is the removable power cord inlet that plugs into an IEC grounded socket. Power Switch - The power switch is located on the ...
Page 20 - Front Panel; Controller Display; - The digital display is an important part of the temperature; Controller Keypad; - The four button keypad allows easy setting of the
around the two corners of the calibrator are provided for airflow. The areaaround the calibrator must be kept clear to allow adequate ventilation. The air-flow is directed upward and as a result, can be extremely hot. 5.2 Front Panel Figure 2 on page 14. Controller Display - The digital display is a...
Page 21 - Constant Temperature Block; The block vent cover may be very hot due to the fan blowing; Probe Sleeves and Tongs; or
EXIT – Used to exit a function and to skip to the next function. Any changesmade to the displayed value are ignored. 5.3 Constant Temperature Block Assembly Figure 3 on page 15. 5.3.1 Constant Temperature Block The “Block” is made of aluminum and provides a relatively constant and accu-rate temperat...
Page 23 - DO NOT; place under a cabinet; Changing Display Units; Press the “UP” or “DOWN” key to change units.; Switching to 230 V Operation; Unplug the unit
6 General Operation 6.1 Calibrator Set-Up Place the calibrator on a flat surface with at least 6 inches of free space aroundthe instrument. Overhead clearance is required. DO NOT place under a cabinet or other structure.Plug the power cord into a grounded mains outlet. Observethat the nominal voltag...
Page 26 - Well Temperature; Temperature Set-point; Programmable Set-points
7 Controller Operation This chapter discusses in detail how to operate the dry-well temperature con-troller using the front control panel. Using the front panel key-switches andLED display the user may monitor the well temperature, set the temperatureset-point in degrees C or F, monitor the heater o...
Page 28 - To change to another set-point memory press “UP” or “DOWN”.; Temperature Scale Units; Press “UP” or “DOWN” to change the units.
100.0 C Well temperature in degrees Celsius S Access set-point memory 1. 100. Set-point memory 1, 100°C currently used To change to another set-point memory press “UP” or “DOWN”. 4. 300. New set-point memory 4, 300°C Press “SET” to accept the new selection and access the set-point value. S Accept se...
Page 29 - Scan; Scan Control; Press “UP” or “DOWN” to toggle the scan on or off.; Scan Rate; Press “UP” or “DOWN” to change the scan rate.
Un= F New units selected 7.3 Scan The scan rate can be set and enabled so that when the set-point is changed thedry-well heats or cools at a specified rate (degrees per minute) until it reachesthe new set-point. With the scan disabled the dry-well heats or cools at themaximum possible rate. 7.3.1 Sc...
Page 30 - Hold Temperature Display; Well temperature display; To return to the normal well temperature display press “DOWN”.; Mode Setting
7.4 Temperature Display Hold The 9140 has a display hold function which allows action of an external switchto freeze the displayed temperature and stop the set-point from scanning. Thisis useful for testing thermal switches and cutouts. This section explains thefunctions available for operating the ...
Page 31 - Switch Test Example; Collect data on a computer connected to the RS-232 port. Refer to; Secondary Menu; Heater Power
sistor. The calibrator measures the voltage at the red terminal and interprets+5V as open and 0V as closed. 7.4.4 Switch Test Example This section describes a possible application for the temperature hold featureand how the instrument is set up and operated. Suppose you have a thermal switch which i...
Page 32 - SEC; Heater power in percent; Proportional Band
is. With good control stability the percent heating power should not fluctuatemore than ± 1% within one minute. The heater power display is accessed in the secondary menu. Press “SET” and“EXIT” simultaneously and release. The heater power will be displayed as apercentage of full power. 100.0 C Well ...
Page 33 - To change the proportional band press “UP” or “DOWN”.
The temperature stability of the well and response time depend on the width ofthe proportional band. If the band is too wide the well temperature will deviateexcessively from the set-point due to varying external conditions. This is be-cause the power output changes very little with temperature and ...
Page 34 - Calibration Parameters; DO NOT change the values of the instrument calibration con-; CAL; Calibration parameters menu
7.6 Controller Configuration The controller has a number of configuration and operating options and calibra-tion parameters which are programmable via the front panel. These are ac-cessed from the secondary menu after the proportional band function bypressing “SET”. Pressing “SET” again enters the f...
Page 35 - Operating Parameters; The operating parameters menu is indicated by,; PAr; Operating parameters menu; Serial Interface Parameters; The serial RS-232 interface parameters menu is indicated by,; SErIAL; Serial RS-232 interface parameters menu; Baud Rate; The baud rate parameter is indicated by,; bAUd; Serial baud rate parameter
7.6.1.2 ALPHA This probe parameter refers to the average sensitivity of the probe between 0and 100°C. The value of this parameter is set at the factory for best instrumentaccuracy. 7.6.1.3 DELTA This probe parameter characterizes the curvature of the resistance-temperaturerelationship of the sensor....
Page 36 - Sample Period; SPEr; Duplex Mode; dUPL; Press “SET” to access the mode setting.
4800 b New baud rate Press “SET” to set the baud rate to the new value or “EXIT” to abort the opera-tion and skip to the next parameter in the menu. 7.8.1 Sample Period The sample period is the next parameter in the serial interface parameter menu.The sample period is the time period in seconds betw...
Page 37 - Linefeed; LF; Serial linefeed parameter
7.8.1.2 Linefeed The final parameter in the serial interface menu is the linefeed mode. This pa-rameter enables (on) or disables (off) transmission of a linefeed character (LF,ASCII 10) after transmission of any carriage-return. The linefeed parameter isindicated by, LF Serial linefeed parameter Pre...
Page 38 - Table 2; Serial Communications; Wiring; ONE; Setup
8 Digital Communication Interface The dry-well calibrator is capable of communicating with and being controlledby other equipment through the digital serial interface. With a digital interface the instrument may be connected to a computer or otherequipment. This allows the user to set the set-point ...
Page 39 - BAUd; The next parameter is the duplex mode indicated with “; Serial Operation
rial interface parameters menu are the BAUD rate, the sample rate, the duplexmode, and the linefeed parameter. 8.1.2.1 Baud Rate The baud rate is the first parameter in the menu. The display will prompt withthe baud rate parameter by showing “ BAUd ”. Press “SET” to choose to set the baud rate. The ...
Page 43 - Comparison Methods; Never introduce any foreign material into the probe hole of; Comparison Calibration; Place the reference probe in one well.
9 Test Probe Calibration For optimum accuracy and stability, allow the calibrator to warm up for 10minutes after power-up and then allow adequate stabilization time after reach-ing the set-point temperature. After completing operation of the calibrator, al-low the well to cool by setting the tempera...
Page 44 - Calibration of Multiple Probes; Dry-well Characteristics; Vertical Gradient; Figures 7
2. Place the probe to be calibrated, the unit under test (UUT), in anotherwell. 3. With the reference inserted into one well and the probe under test in-serted into a second well, make measurements of each. 4. Swap the locations of the reference probe and probe under test. Allowplenty of time for th...
Page 45 - DO NOT remove inserts when heating or when the unit is; Stabilization and Accuracy
WARNING: DO NOT remove inserts when heating or when the unit is hot. 9.2.3 Stabilization and Accuracy The stabilization time of the dry-well calibrator will depend on the conditionsand temperatures involved. Typically the test well will be stable to 0.1°C within5 minutes of reaching the set-point te...
Page 47 - Calibration Procedure
10 Calibration Procedure Sometimes the user may want to calibrate the dry-well to improve the tempera-ture set-point accuracy. Calibration is done by adjusting the controller probecalibration constants R0 , ALPHA, and DELTA so that the temperature of thedry-well as measured with a standard thermomet...
Page 48 - and R; delta
C T T T T = ⎡ ⎣⎢ ⎤⎦⎥ − ⎡⎣⎢ ⎤⎦⎥ − ⎡ ⎣⎢ ⎤⎦⎥ − ⎡⎣⎢ ⎤⎦ 3 3 2 2 100 1 100 100 1 100 ⎥ D T T T T = ⎡ ⎣⎢ ⎤⎦⎥ − ⎡⎣⎢ ⎤⎦⎥ − ⎡ ⎣⎢ ⎤⎦⎥ − ⎡⎣⎢ ⎤⎦ 2 2 1 1 100 1 100 100 1 100 ⎥ E R R = − 3 2 F R R = − 2 1 delta AF BE DE CF = − − T 1-3 - Measured temperature using thermometer. R 1-3 - Value of set-point resistance ...
Page 49 - Accuracy & Repeatability; Calibration
b. Press SET then use the UP or DOWN keys until the correct numericalsetting is displayed. Press SET to accept the new value. c. Repeat step b. for ALPHA and DELTA. 10.2.3 Accuracy & Repeatability 1. Check the accuracy of the dry-well at various points over the calibrationrange. 2. If dry-well d...
Page 50 - Maintenance
11 Maintenance • The calibration instrument has been designed with the utmost care. Easeof operation and simplicity of maintenance have been a central theme inthe product development. Therefore, with proper care the instrumentshould require very little maintenance. Avoid operating the instrument ina...
Page 51 - Troubleshooting
12 Troubleshooting If problems arise while operating the 9140, this section provides some sugges-tions that may help you solve the problem. A wiring diagram is also included. 12.1 Troubleshooting Problems, Possible Causes,and Solutions In the event that the instrument appears to function abnormally,...
Page 52 - CE Comments; EMC Directive
Problem Possible Causes and Solutions The display showsan error code Controller problem. The error messages signify the following problems with the controller. Err 1 - a RAM error Err 2 - a NVRAM error Err 3 - a Structure error Err 4 - an ADC setup error Err 5 - an ADC ready error Err 6 – a defectiv...
