wtw EcoLine pH 170 Bedienungsanleitung Seite 200

Redox measurement Redox measurement
Redox signal input Redox signal input
Display and measuring Display and measuring
range range
Measured value resolution Measured value resolution
Accuracy Accuracy
Temperature Temperature
measurement measurement
Temperature sensor Temperature sensor
Accuracy Accuracy
Resolution Resolution
Inputs / outputs Inputs / outputs
Sensor input Sensor input
Contact outputs Contact outputs
Signal outputs Signal outputs
Connector terminals Connector terminals
204 204
Technical Data Technical Data
Low impedance or high impedance Low impedance or high impedance
– 1000 mV to + 1000 mV – 1000 mV to + 1000 mV
1 mV 1 mV
± 2 mV ± 1 digit ± 2 mV ± 1 digit
• NTC (integrated in SensoLyt or external armatures) • NTC (integrated in SensoLyt or external armatures)
• PT 100 (3-line technology, direct via terminals) • PT 100 (3-line technology, direct via terminals)
• PT 1000 (3-line technology, direct via terminals) • PT 1000 (3-line technology, direct via terminals)
• NTC • NTC
• PT100/PT 1000 • PT100/PT 1000
Additional fine adjustment of ± 0.5 K Additional fine adjustment of ± 0.5 K
0.1 K 0.1 K
7-contact round plugconnector with screw fixing 7-contact round plugconnector with screw fixing
SENS-CHECK relay SENS-CHECK relay
Relay 1/ Relay 2 Relay 1/ Relay 2
• Max. switching voltage 250 VAC • Max. switching voltage 250 VAC
• Max. switching current 5 A • Max. switching current 5 A
• Max. switching capacity 150 W (ohmic load) • Max. switching capacity 150 W (ohmic load)
0/4 to 20 mA; electrically isolated from the input; 0/4 to 20 mA; electrically isolated from the input;
recorder ranges and recorder attenuation can be set recorder ranges and recorder attenuation can be set
via software via software
• Basic accuracy • Basic accuracy
• Load • Load
• Load effect • Load effect
Accessible after opening the instrument; Accessible after opening the instrument;
Cable inlet by 4 PG screws Cable inlet by 4 PG screws
Connector cross section 0.5 to 2.5 mm² Connector cross section 0.5 to 2.5 mm²
• Power supply • Power supply
• Relay 1/2 • Relay 1/2
• SENS Check • SENS Check
• Recorder connections each 2-contact • Recorder connections each 2-contact
• Sensor • Sensor
± 0.2 K ± 1 digit ± 0.2 K ± 1 digit
± 0.1 K ± 1 digit ± 0.1 K ± 1 digit
Closes on sensor defect Closes on sensor defect
Functions, limit controller Functions, limit controller
0.1% 0.1%
max. 600 Ohm max. 600 Ohm
< 0.1 % < 0.1 %
2-contact 2-contact
each 2-contact each 2-contact
2-contact 2-contact
9-contact 9-contact