低价供应SNAP-AIRTD通讯模块..

SNAP-AIRTD-1K

SNAP-AIRTD

SNAP-AIRTD-10

3-wire RTD input

1000 ohm platinum @ 0 °Calpha=

1000 ohm nickel @ 0 °C
alpha=

1000 ohm nickel @ 70 °C
alpha=

100 ohm platinum;alpha=

100 ohm nickel, -60 to 250 °C

120 ohm nickel, -80 to 260 °C

10 ohm copper;alpha=

Input Temperature Range

-200 °C to 850 °C
(-328° to +1,582° F)

-200 °C to 850 °C
(-328° to +1,582° F)

-180 °C to 260 °C
(-292° to +500° F)

Input Range

0 to 4000 ohms

0 to 400 ohms

0 to 25 ohms

Over-Range Limit

to 4400 ohms

to 440 ohms

to ohms

Resolution (average)

°C ( ohms)

°C ( ohms)

°C ( ohms)

Input Filtering

-3 dB @ Hz

-3 dB @ Hz

-3 dB @ 100 Hz

Data Freshness (Max)

100 ms

100 ms

168 ms

Lead Compensation

Automatic when used with SNAP brains

Automatic when used with SNAP brains

Automatic when used with SNAP PAC brains

DC Common Mode Rejection

>-120 dB

>-120 dB

>-120 dB

AC Common Mode Rejection

>-120 dB at 60 Hz

>-120 dB at 60 Hz

>-120 dB at 60 Hz

Excitation (typical)

mA constant current

mA constant current

mA constant current

Maximum Lead Resistance

>40 ohms single wire (all leads to be equal resistance)

>40 ohms single wire (all leads to be equal resistance)

>15 ohms single wire (all leads to be equal resistance)

Maximum Fault Voltage at Input
(between any 2 field wires)

±15 V

±15 V

±15 V

Maximum Operating Common Mode Voltage

250 V

250 V

250 V

Accuracy
From factory
After setting gain and offset

°C
°C

°C
°C

°C
°C

Isolation

1500 V

1500 V

1500 V

Power Requirements

5 VDC (±) @ 190 mA

5 VDC (±) @ 190 mA

5 VDC (±) @ 190 mA

Operating Temperature

0 °C to 70 °C

0 °C to 70 °C

0 °C to 70 °C

Storage Temperature

-25 °C to 85 °C

-25 °C to 85 °C

-25 °C to 85 °C

Torque, hold-down screws

4 in-lb ( N-m)

4 in-lb ( N-m)

4 in-lb ( N-m)

Torque, connector screws

in-lb ( N-m)

in-lb ( N-m)

in-lb ( N-m)

Agency Approvals

CE, RoHS, DFARS

UL, FM, CE, RoHS, DFARS

CE, RoHS, DFARS

Warranty

Lifetime

Lifetime

Lifetime