RKI Instruments GD-70D Series - Product Specifications; Common Specifications

- 119 - GD-70D
12
Product Specifications
12-1 Common Specifications
Display
LCD (Digital and Bar Meter Display)
Flow Rate
0.5L/min ±10%
Displays
Gas name display/Flow rate indicator/Mode display/Communication status
display/Pyrolyzer connection display
Alarm Display
First: ALM1 lamp on (Red)
Second: ALM2 lamp on (Red)
Fault: FAULT lamp on (Yellow), fault code displayed on LCD
Alarm Activation
Auto-reset or self-latching (fault alarm is auto-reset only)
Alarm Contact
Specifications
- No-voltage contact, 2 step independent, normally open (factory setting) or
normally closed
- Normally de-energized (energized during alarm, factory setting) or
normally energized (de-energized during alarm)
- Capacity: 125 VAC 0.25A or 24 VDC 0.5A (resistive load)
Recommended
Contact Cable
Cable of CVV, etc. (1.25sq) - max. 6-core
Functions
White backlight/Alarm delay/Suppression/Zero follower/Sensitivity correction/
Flow control/Calibration history/Alarm trend history/Event history
Recommended
Tubing
4 mm x 6 mm Teflon
Max Tubing
Lengths
30 meters
External
Dimensions
Approx. 70(W) x 120(H) x 145(D) mm
Weight
Approx. 0.9 kg
Outer Color
Gas detector: grey
Front door: white
12-2 Specifications for Each Model
GD-70D
GD-70D-NT
Transmission
System
3-wire type analog transmission
(Common Power Supply <Power,
Signal, Common>)
or 2-wire type analog transmission
2-wire type DC power-line
communication
Transmission
Specification
4 - 20 mA DC (no-insulation/load
resistance under 300Ω)
Recommended
Transmission
Cable
Shielded cable of CVVS, etc. (1.25sq)
3-core or 2-core
Shielded twisted-pair cable
(1.25sq) of KPEV-S, etc. - 1P
Recommended
Power Cable
Cable of CVV, etc.(1.25sq) - 2-core
(Those for 3-wire type are common with
the transmission cable.)
(Common with the transmission
cable)
Input Power
24VDC ±10%
24VDC ±10%
(Dedicated line by blocking filter)