The Edison model 4400 temperature monitor can accommodate up to four points of RTD inputs. This highly reliable monitor has been in production in various styles since the 1960’s. The monitor has set points that are set to a suggested temperature by the operator. When the temperature has reached the set point, the alarm relay will energize and shut down equipment connected to the monitor. The temperature can be read from the front panel digital meter at any time.
| Electrical |
Operating voltages available: |
115/230 VAC ± 10% @ 50/60 Hz or 24/28 VDC |
Power drain (typ.): |
Alarm: 6 watts
Standby: 3 watts |
Operating ranges ( set point range): |
Nickel #7: -80°C to +320°C
Copper #15: -50°C to +240°C
Platinum #8 or #11: -80°C to +320°C |
Set point specifications: |
Resolution: 0.2% of range
Environmental: ±0.5%
(Temp. -20°C to +65°C) |
RTD temperature to output signal conversion accuracy: |
Platinum & copper: ±0.15%
Nickel: ±0.5%
Ambient temp. sensitivity: ±0.5%
(Temp. -20°C to +65°C) |
Relay contact rating (4 output relays, 1 trouble/test relay): |
28 VDC, resistive, 5 amp; inductive, 1.5 amp
120 VAC, resistive, 5 amp; inductive, 1.5 amp |
| Mechanical |
Dimensions (maximum): |
5.0" x 5.0" x 12.5" w/o 4-20mA |
Weight: |
5 lbs. max. (2.3 kg) |
Tilt angle (maximum): |
±90° about horizontal |
| Environment |
Operating temperature range: |
-20°C to +65°C (-4°F to +149°F) |
| Digital Indicator |
Accuracy: |
±0.5% RDG (±1 count) |
Temperature: |
50 ppm/°C max. |
