Features of the Edison Onguard 4400 RTD Temperature Monitor

  • RTD inputs for Nickel #7, Platinum #8 or #11, Copper #15
  • 4-20 mA add on option
  • Conventional electronics simplifies minimal learning curve
  • Traditional Edison quality throughout
  • Anodized aluminum case
  • Milled aluminum front bezel
Edison Onguard 4400 RTD Temperature Monitor

Edison Onguard 4400 RTD Temperature Monitor

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.

Specifications of the Edison Onguard 4400 RTD Temperature Monitor

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.

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