Page 2 - OMEGAnet; Servicing North America:
2 OMEGAnet SM On-Line Service http://www.omega.com Internet e-mail [email protected] Servicing North America: USA: ISO 9001 Certified One Omega Drive, Box 4047Stamford, CT 06907-0047Tel: (203) 359-1660e-mail: [email protected] FAX: (203) 359-7700 Canada: 976 BergarLaval (Quebec) H7L 5A1Tel: (514) 856-6928...
Page 3 - INTRODUCTORY NOTE; . We recommend to contact our
3 INTRODUCTORY NOTE A TTENTION : T HIS MANUAL MUST BE REFERRED TO INSTRUMENTS WITH SERIAL NUMBER 005980 ONWARDS . This publication contains operating instructions, as well as a description of the principles of operation, ofCL526 multifunction portable calibrator.This information covers all models of...
Page 4 - TABLE OF CONTENTS; Wiring
4 TABLE OF CONTENTS 1 GENERAL PERFORMANCE ............................................................................................................... 6 1.1 Specifications ................................................................................................................................
Page 6 - GENERAL PERFORMANCE; millivolts; The
6 1 GENERAL PERFORMANCE A complete system for testing, measuring and calibrating built in a single, compact portable instrument. The portablecalibrator CL526 is a multifunction instrument designed to meet, in a modern and practical way, the needs of instrumentation engineers, both in laboratory and ...
Page 8 - Program release identification:; release code on the display; Operating environment temperature range:; ABS with internal metal coating
8 • Calibration: semi-automatic procedure • Power supply: n. 4 Ni-MH batteries 1.25 V 1.2 A/h • Battery life: 4 hours with 20 mA simulation mode12 hours on measuring mode • Recharge time: 10 hours with instrument switched -Off- (at 90%) • Battery voltage: value indicated on the display • Program rel...
Page 9 - Table of ranges and accuracy
9 1.2.1 Table of ranges and accuracy Sensor or Total range High accuracy Resolution Limit of error parameter range Tc type J -210 to +1200°C -190 to +1200°C 0.1°C ± (0.02% of rdg +0.1°C) -346 to +2192°F -310 to +2192°F 0.1°F ± (0.02% of rdg +0.18°F) Tc type K -270 to +1370°C -150 to 1300°C 0.1°C ± (...
Page 10 - GENERAL FEATURES; procedure is protected by a security code.
10 2 GENERAL FEATURES 2.1 Input and output flexibility Advanced flexibility of performance has been achieved using microprocessor technology. Each instrument, through amenu-driven procedure, allows measurement or simulation of mV, V, mA, Ω , or any normalized IEC, DIN and JIS thermoelectric sensor J...
Page 11 - a manual repeat increment through keyboard
11 • a continuous or step ramp output where the total time, the start point, the end point and the size of the step arerequested by the set-up procedure to run the program; • a manual repeat increment through keyboard; • an automatic sequence of up to 60 stored values (20 groups of 3 memories). 2.10...
Page 12 - PHYSICAL DESCRIPTION
12 3 PHYSICAL DESCRIPTION The CL526 portable calibrator consists of a rugged and compact case, a mother board with all base functions, a daughter board for the auxiliary functions, a tactile membrane keyboard, an LCD display and a group of four nickel-cadmium rechargeable batteries.The internal surf...
Page 13 - FUNCTIONAL DESCRIPTION; Power supply; maximum when; Keyboard; and
13 4 FUNCTIONAL DESCRIPTION The CL526 portable calibrator block diagram is shown below. Microprocessor D/A (converter) Keyboard Gain Control Comparator and buffer IN/OUT Switch Reference junction Power supply Display Converters for backligh A Digitalinterface Signal OUT output signal output signal I...
Page 14 - circuit
14 ON Power ON switch OFF Power OFF switch IPTS68-ITS90 Temperature Scale selection Rj Reference junction internal-external selection < ▲ ▲ ▲ ▲ > < ▼ ▼ ▼ ▼ > Membrane slidewires to set the simulation value (to scroll the menu of input tables and library of engineering characters). STORE ...
Page 15 - display
15 The microprocessor recognizes if the D/A converter is generating a voltage signal higher or lower than the input signaland gives correcting instructions to keep the input amplifier output on the nearest value to zero. In the above conditionsthe microprocessor acknowledges the value of the input s...
Page 16 - Battery charger. Operation from line source; interface
16 P D/A Keyboard 1000 mV 100 mV 54 mV 22 mV Out µ x 1000 multipl. 4.8 Battery charger. Operation from line source A TTENTION : ONLY FOR USE WITH N I -MH B ATTERIES . The auxiliary module, supplied as a standard accessory, allows operation from 110-120 Vac or 220-240 Vac 50/60 Hz.The calibrator, if ...
Page 17 - Resistance and Rtd simulation; Thermocouples input-output circuit
17 4.11 Resistance and Rtd simulation CL526 portable calibrator is equipped with an electronic circuit for the active simulation of platinum and nickel resistance thermometers and resistances.It is based on the assumption that the instrument to be calibrated will supply the excitation current to the...
Page 18 - UNPACKING
18 5 UNPACKING Remove the instrument from its packing case and remove any shipping ties, clamps, or packing materials.Carefully follow any instructions given on any attached tags.Inspect the instrument for scratches, dents, damage to case corner etc. which may have occurred during shipment.If any me...
Page 19 - PRE-OPERATIONAL CHECK; DO NOT
19 6 PRE-OPERATIONAL CHECK The CL526 portable calibrator is powered by four Ni-MH rechargeable batteries. The external battery charger, supplied as standard, may be ordered for either 110/120 Vac or 220/240 Vac powersource. To modify the charger’s power voltage follow the instructions in par. 8.2.Be...
Page 20 - ELECTRICAL CONNECTIONS; E Chromel; Wiring practice; Although the
20 7 ELECTRICAL CONNECTIONS Appropriate extension wires should be used between the thermocouple (or instrument under calibration) and the CL526 unless the thermocouple leads permit direct connection.Make sure that both thermocouple and compensating cable are connected with the correct polarity.If in...
Page 21 - Examples of input /output wiring and connections; Thermocouple wires
21 Examples of input /output wiring and connections Rtd (2 wire) MEASURE CH1 Thermocouples, mV Rtd ( 3 wire) Rtd (4 wire) SIMULATION CH1 mA Active loop - +PS +IN -IN RTD - +PS +IN -IN RTD - +PS +IN -IN RTD - +PS +IN -IN RTD mA Passive Loop - +PS +IN -IN RTD + - + - NOT CONNECTED Thermocouples, mV mA...
Page 22 - Limit of Error of thermocouple wires; Tc
22 The table below summarizes the error limits for Premium and Standard grades, while Extension grade wire ischaracterized by limits of error exceeding those in the table.Errors up to ±4°C may be experienced when using Extension grade thermocouple wire for J and K thermocouples. Limit of Error of th...
Page 23 - POWER SUPPLY; Rechargeable batteries; SHIFT; following indication will be displayed:; OMEGA; Battery Charger
23 8 POWER SUPPLY 8.1 Rechargeable batteries The CL526 portable calibrator is powered by four built-in rechargeable batteries. The instrument is shipped with an average level of charge. After unpacking, a full charge of the batteries is recommended; connect the instrument to thecharger module (“OFF”...
Page 24 - OPERATION & APPLICATIONS; Power ON; ON; Battery voltage indication
24 9 OPERATION & APPLICATIONS 9.1 Power ON A TTENTION : ALL VALUES IN THE FOLLOWING FIGURES ARE ONLY LISTED AS AN EXAMPLE . During set-up and load memory remember that the instructions of the manual related to key operation have the followingmeaning: <A> + <B> Press the <A> key...
Page 25 - SELECT; Tc J K T U L N E; ENTER
25 9.3.1 IN - OUT mode selection • Press the <ON> key to power the instrument. • After diagnostic routine, the calibrator will be forced into the “IN” function with the active parameter previously selected (i.e. with the indication of a measured value of +1032 °C with thermocouple type “K”). I...
Page 27 - Average readings
27 • To “convert” the type of indication, with the instrument operative in any of the above indicated modes, press <SHIFT> + <CONVERT> keys obtaining for example the following indications: Out 100.0 °C TcK • Press < SHIFT > + < CONVERT > keys to obtain the equivalent mV indic...
Page 30 - Step 1.0mV
30 End Start Time Soak Time Soak Z step • To memory load the cycle parameters, follow the procedure indicated below • Select the required tecnical unit or electrical parameters • Select the required decimal point position • Press <SHIFT> + <TIME> keys to enter the cycle set-up procedure ...
Page 31 - Mode 1 1 ramp; Simulation cycle
31 • Press < ENTER >+< SOAK > keys to memory store the new value • Press the <MODE> key to obtain one of the following indications: Mode 1 ^ ramp single cycle program Mode 1 ^ ramp repeated cycling program Mode 1 1 ramp single cycle program Mode + 1 ramp repeated rise ramp program....
Page 32 - Scale factor program
32 RJ : 0.0°C ext is displayed, it means that an external reference junction compensation has been selected for a temperature of 0.0°C(programmable from -50°C to +100°C).The reference junction compensation mode can be reprogrammed as indicated in par. 8.5.6. The external referencejunction compensati...
Page 33 - 8 O P g
33 • Press the < ▲ ▲ ▲ ▲ > or < ▼ ▼ ▼ ▼ > key to select the required page. • Press the <ENTER> key to memory load the selection. • The program will advance to the next step with the indication : WORD: ! or from a previous set-up eg. WORD: mbar This procedure allows the setting of f...
Page 34 - Installation parameter procedure; Firmware version code - Serial number; External Rj compensation
34 • Press the <ENTER> key to memory load the selection • The display will indicate the scaled input/output value. Out 105.8 mbar 9.3.13 Installation parameter procedure • To enter this procedure press the <ENTER> + < ON > keys • The display will indicate as shown below (the indica...
Page 35 - DIGITAL INTERFACE; Digital interface data program mode
35 10 DIGITAL INTERFACE The CL526 portable calibrator is equipped with a digital interface. The interface circuit is essentially based on the serial communication interface subsystem (SCI) on the chip of the microprocessor. The output voltage levels are TTL at 0 to +5V.An optional adaptor to convert...
Page 36 - Front view; LINDY; TTL to RS 232 adapter; Communication protocol from CL526 to a PC; COMPUTER REQUEST
36 Front view 1 2 3 4 5 6 7 8 LINDY CINCH pin 1 : brown black pin 2 : red green pin 3 : green blue pin 4 : gray gray pin 5 : purple yellow pin 6 : blue white pin 7 : orange red pin 8 : yellow brown 10.3 TTL to RS 232 adapter The cat. BB530001 TTL to RS232 adaptor consists of a cable to which are con...
Page 40 - Computer request for CL526 settings; Computer
40 18 = Ni120 19 = OHM 20 = 22 mV 21 = 100 mV 22 = 1000 mV 23 = 10 V 24 = 20 mA 25 = X scaling Lin (name).AND.80hex = 0 = value OK 80hex = error if line (name).AND.80hex = 80hex 0 = under corresponding "Value Lo" 1 = over 2 = error 7 3 = error 2 4 = error 6 6 = error 0 if line (name).AND.80h...
Page 44 - Communication programs; and an IBM or IBM; Example A
44 10.6 Communication programs In this paragraph are illustrated two examples of communication programs between the CL526 and an IBM or IBM compatible PC. Example A: (data transfer from CL526 to PC) Set IDNAME=1 and BAUD RATE=9600 on CL526 (see chapter 8.6). Connect CL526 through adapter BB530001 (T...
Page 46 - MAINTENANCE; Safety recommendations
46 11 MAINTENANCE The CL526 portable calibrator has been factory tested and calibrated before shipment. The calibration should be verified and re-adjusted if the instrument is showing an error exceeding the declaredspecifications or when a critical active or passive component is replaced (either at ...
Page 47 - Indicates a possible error during scale factor computation.; Protection fuses; Storage
47 ERROR 6 When in mV or Tc “OUT” function the current flow must notexceed 0.5 mA. ERROR 7 Indicates a possible error during scale factor computation. The above indicated faulty conditions can be announced both during the autodiagnostic routine or in measure orsimulation modes.If the faulty conditio...
Page 48 - INDEX; ELECTRICAL CONNECTIONS 20
48 INDEX A Automatic simulation cycle; 29Average measurements; 10Average readings; 27 B Battery Charger; 23Battery charger. Operation from line source; 16Battery voltage indication; 24 C Case; 11Communication programs; 44Communication protocol from CL526 to a PC; 36Computer request for CL526 setting...
Page 49 - RETURN REQUESTS / INQUIRIES; WARRANTY
49 WARRANTY/DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shippin...
Page 50 - TEMPERATURE
50 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! TEMPERATURE ! ! ! ! Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies ! ! ! ! Wire: Thermocouple, RTD & Thermistor ! ! ! ! Calibrators & Ice Point References ! ! ! ! Record...
