Specifications; Control Units; Model 20-35-Nm-F (Field Mount Version) - Thermo Scientific 20-35-NM-F User Manual

1.3 Control Unit
1.3.1 Model 20-35-NM-F
The Control Unit is housed in an enclosure with green ("normal") and red ("alarm")
indicating lights on the front cover. An adjustable selection of 1, 2, 4, or 6 seconds
of time delay in the control unit circuit will prevent false or premature contact
transfer caused by momentary tilting of probe.
Tilt Probe alarm position: Two SPDT output contacts for connection to external
alarms and/or controls.
Probe failure or supply short: One normally open (NO) contact.

SPECIFICATIONS:

Power Requirements
Voltage:
Frequency:
Consumption: 7VA
Fusing:
Outputs
Alarm:
Time Delay:
Dimensions:
Humidity:
Altitude:
Temperature Rating: -40°F(-40°C) ≤ Ta ≤ +122°F(+50°C)
Protection:
Pollution Degree: 2
Installation Category: II
(Field Mount Version)
115/230 VAC +/- 10%, by selector switch
50/60Hz
(F1) 0.05A SB Type T (F2) 0.1A SB Type T
Two (2) SPDT contact.
Rated at 10 Amp at 115/230 VAC or 7 Amp at 30 VDC non-
inductive
Probe Fault or Supply Short: One (1) NO contact 115/230 VAC 2
Amp, 24VDC 3 Amp.
Adjustable 1, 2, 4, or 6 seconds.
See Figure 2-1
50 to 80%
Up to 2000m
NEMA 4, Optional NEMA4X Stainless Steel
1-3