EMT 1900 Single Hole Mounting Thermometer EMT 1900 is an easy to mount LCD digital panel meter. The module can measure ambient temperature via a built-in sensor and outside temperature via an external sensor (not supplied). The module uses NTC temperature sensors to ensure high accuracy over a wide temperature range. To mount the module, 7 the user need only drill a single 5.5mm / / hole in the panel. The module is fitted to the panel by locating its screw threaded stud through the hole, fitting the 32 washer and tightening the nut provided. The module s connecting wires pass through the hollow stud into the target application, where they can be easily plugged or soldered into place. A rubber seal is included, providing splashproof protection for the unit when fitted to the meter during installation. Single Hole Mounting 4 Measurement Ranges 12.5mm / 0.5 LCD Digit Height C Compatible with 10kW NTC Sensors 5-Wire Connection Shown Actual Size Splashproof Stock Number Easy Mounting Thermometer EMT 1900 Specification Min. Typ. Max. Unit Measurement C range (Internal Sensor) -10 +50 C ranges F range (Internal Sensor) +14 +122 F Seal C range (External Sensor) -20 +220 C Panel 5 Wires - 30cm (12.0) F range (External Sensor) -4 +428 F Resolution Internal Sensor 0.5 (1) C (F) -20 to +140C 1 (2) C (F) THERMOMETER Resolution External Sensor +140 to +170C 2 (4) C (F) +170 to +220C 5 (10) C (F) Accuracy* C range (Both Sensors) 1 C (2 count) F range (Both Sensors) 2 F (4 count) Sample rate 3 sample/sec Nut Operating temperature range -10 +50 C Supply voltage** 4 28 V d.c. 9.0 Washer (0.35) Supply current 1 mA * Using external NTC sensor with 10kW 25C and a 25 to 85C Beta value of 3977, for example: BC Components 2322-640-73103. The module may require recalibration. To ensure maximum accuracy, recalibrate periodically. Calibrate the module at top end of measurement range. ** Do not apply more than 28V, as this may damage the meter. DIMENSIONS All dimensions in mm (inches) C Underrange display 43.50 (1.71) REAR VIEW 10.70 CAL EXT (0.42) 5.00 Overrange display (0.20) 10.70 CAL INT (0.42) FITTING THE EMT 1900 7 Drill a 5.5mm / / hole in the panel. Fit seal to the rear of the module. Fit the module to 32 the panel by passing its screw threaded stud and the wires through the hole, fitting the washer and tightening the nut provided. Take care not to trap any of the connecting wires. 21.75 (0.85) 21.75 (0.85) Do not overtighten the nut as this may damage the meter. Module thickness: 5.5mm (0.22 ) www.lascarelectronics.com 21.40 (0.84)LASCAR ELECTRONICS LTD. LASCAR ELECTRONICS INC. LASCAR ELECTRONICS (HK) LIMITED MODULE HOUSE, WHITEPARISH, 3750 West 26th Street, FLAT C, 5/FL., LUCKY FTY. bldg., 63-65 HUNG TO ROAD WILTSHIRE SP5 2SJ UK Erie, PA 16506 USA KWUN TONG, KOWLOON, HONG KONG TEL: +44 (0)1794 884567 FAX: +44 (0)1794 884616 TEL: +1 (814) 835 0621 FAX: +1 (814) 838 8141 TEL: +852 2797 3219 FAX: +852 2343 6187 E-mail: sales lascar.co.uk E-mail: us-sales lascarelectronics.com E-mail: b4lascar samsongroup.com.hk 0. BLACK 0V Negative supply voltage to the module. 1. BROWN NTC Connection for external 10kW NTC sensor. 2. RED V+ Positive supply voltage to the module. 3. ORANGE INT/EXT Leave floating to display internal sensor temperature. Connect to 0V to display external sensor temperature. 4. YELLOW C/F Leave floating to select C measurement range. Connect to 0V to select F measurement range. SAFETY As the NTC temperature sensor is a passive device, no voltages should be applied to the input terminals of the EMT 1900. The user must ensure that the incorporation of the meter into the users equipment conforms to the relevant sections of BS EN 61010 (Safety Requirements for Electrical Equipment for Measuring, Control and Laboratory Use). APPLICATIONS +4 to +28V d.c. +4 to +28V d.c. RED RED BROWN ORANGE NTC R =10kW C C 25C b =3977+0.75% 2 5 -8 5 C S1 BLACK BLACK 0V 0V Displaying ambient temperature in C, Leave S1 open to display internal sensor temperature in C. using the module s internal temperature sensor. Close S1 to display external Sensor temperature in C. +4 to +28V d.c. RED YELLOW BROWN NTC F ORANGE R =10kW 25C S2 b =3977+0.75% 2 5 -8 5 C BLACK S1 0V Leave S1 open to display internal sensor temperature. Close S1 to display external Sensor temperature. Leave S2 open to display temperature in C. Close S2 to display temperature in F. Specifications liable to change without prior warning EMT 1900 Issue 8 August/2002 M.C. Applies to EMT 1900/2