Davis 6477 Rubber sh. Ext. Temp Probe RJ Conn

Rubber sh. Ext. Temp Probe RJ Conn

Davis 6477 Rubber sh. Ext. Temp Probe RJ Conn
42.89 *Prices include VAT
Article codeDA-6477

On stock


Description
The External Temperature Probes may be used with the wireless Weather Envoy (6316), Envoy8X (6318), Wireless Temperature Station (6372), or the Anemometer/Sensor Transmitter Kit (6330). They can be used to measure air, soil or water temperatures.The sensor is a precision platinum wire thermistor which produces a resistance change proportional to temperature. In the Stainless Steel model (6475), it is epoxy-encapsulated in a 316 alloy stainless steel body with vinyl strain relief. In the External Temperature Probe (6477), it is sheathed in vinyl.To ensure accurate readings when measuring outdoor air temperature, the probe should be shielded from direct sunlight and other sources of reflected or radiated heat. We recommend the use of the Radiation Shield (#7714) for this purpose.

Specifications
General
Sensor Type (see Charts) . . . . . . . . . . . . . . . . . . . . . . . .  Platinum wire thermistor
Time ConstantIn Still Air  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  100 seconds
In Liquid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28 seconds
Attached Cable Length  . . . . . . . . . . . . . . . . . . . . . . . . . .  25' (7.6 m)
Cable Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4-conductor, 26AWG
Recommended Maximum Cable Length (see Note 1)  . . .  200' (61 m)
  • Note: There is no absolute maximum cable length. Increasing the cable length above the recommended maximum length causes an increased measure-ment error at a rate of approximately +0.24°F (+0.13°C) per 100' (30 m) of 22 AWG cable. See Figures 1 and 2, on page 2.

Housing Material
6475  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  316 alloy stainless steel housing with vinyl strain relief
6477  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Black vinyl
Housing Dimensions
6475  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.312" diameter x 2.5" long (8 mm diameter x 64 mm long)
6477  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.25" diameter x 1.25" long (6.5 mm diameter x 32 mm long)
Weight  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4.5 oz. (128 g)

Sensor Output
Resolution and Units . . . . . . . . . . . . . . . . . . . . . . . . . . . .  1°F or 1°C (user-selectable)
  • Historical Graph Data and Alarms: 1°F or 1°C (user-selectable)
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -40° to +150°F (-40° to +65°C)
Sensor Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ±1°F (±0.5°C) typical (see Figure 3)
Update Interval
  • When used with Wireless Temperature Station       or Anemometer/Sensor Transmitter Kit . . . . . . .  10 - 12 seconds
  • When used with Weather Envoy or Envoy8X . . . . . .  1 minute