5
Product Specifications
Specifications and Characteristics
Channels/configurations 40 2-wire
20 4-wire
4-current (1.5 A fused)
Switch type Armature Latching
Input characteristics (per channel)
Max volts (DC, AC RMS)
1
±300 V
Max current (DC, AC RMS) Switch current
Carry current
1 A
2 A
Power (W, VA)
4
60 W
Volt-Hertz limit
8
10
Initial closed channel resistance
2,7
< 1.5 Ω
General specifications
Offset voltage
2
<3 uV
DC Isolation (ch-ch, ch-earth) >10 GΩ
T/C cold junction accuracy
2,6
< 0.8 °C
AC characteristics
Bandwidth at terminal block
3
45 MHz
Crosstalk at terminal block (ch-ch)
3
300 kHz
1 MHz
20 MHz
45 MHz
-75 dB
-75 dB
-50 dB
-40 dB
Capacitance at terminal block HI-LO
LO – earth
150 pF
150 pF
General characteristics
Relay life typical No load
10 V, 100 mA
Rated load =
100 M
10 M
100 k
Scanning speeds
5
100 ch/s
Open /close time, typical 4 ms/4 ms
Analog bus connection Yes
1 DC or AC RMS voltage, channel-to-channel or channel-to-earth
2 At analog bus connector
3 50 Ohm source, 50 Ohm load, differential measurements verified with 4-port network analyzer (Sdd21)
4 Limited to 6 W of channel resistance power loss per module
5 Speeds are with an external DMM with 4-½ digits, delay 0, display off, autozero off, and within bank
6 Includes 0.5°C error temperature reference sensor and 0.3°C terminal block isothermal gradient error. See User’s Guide for information on supported external reference sensors.
7 Channel resistance is typically <1.5 Ω but can go as high as 50 Ω if a channel is used in a measurement application with <10 mA load current. Increased relay channel resistance for measurements with
load currents below 10 mA can occur on cards that have been out of service or following relay inactivity for periods of greater than 1 week. Switching relays for 2 K cycles prior to use may reduce the
variation in channel resistance. Agilent recommends the use of 4-wire Ohms for resistance measurements. For high accuracy voltage measurements, select the DMM input resistance setting of>10 GΩto
minimize the impact of relay contact resistance.
8 DC or Peak AC current
Measurement Accuracy For accuracy measurement specification, combine the DMM offset with the switch offset.
Bandwidth of the switch may offset the accuracy of the AC measurement.
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