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Agilent 34907A
Multifunction Module
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Agilent 34907A
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Features:
- 16 bits of digital input and output
- 100 kHz totalizer input
- Two ±12V analog outputs
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Description
The Agilent 34907A allows great flexibility for a variety of sense and control applications. It combines two 8-bit ports of digital input and output, a 100 kHz gated totalizer, and two ±12V analog outputs — all on a single earth-referenced module. The digital inputs and totalizer input may be included in a scan. Alarm limits for the digital and event counter inputs are evaluated continuously, capturing and logging alarm conditions even between scans.
Digital Input/Ouput
Use the digital outputs with an external power supply to control microwave switches and attenuators, solenoids, power relays, indicators, and more. Use the digital inputs to sense limit switch and digital bus status. There are no complex handshake modes; reads and writes are initiated either from the front panel or the bus.
Analog output
Use the two electronically calibrated analog outputs to source bias voltages to your device under test, to control your analog programmable power supplies, or use the outputs as setpoints for your control systems. The outputs are programmed directly in volts, either from the front panel or from the bus.
Modules specifications
The Agilent 34970A accuracy specifications already include the switching offset and reference junction errors shown in the chart. These errors are listed separately for determining system error with external measurement devices. These errors are listed separately for determining system error with external measurement devices.
Up to three modules, in any combination, can be inserted into a single mainframe. The 34970A’s internal DMM connections are accessible only through the 34901A, 34902A, and 34908A low frequency multiplexers.
On-module screw terminals accept wire sizes from 16 gage to 22 gage. Twenty-gauge wire is recommended for high channel count applications. The 34905A and 34906A RF Multiplexers use SMB connectors. A standard set of (10) BNC-to-SMB adapter cables is provided with each RF module for convenient BNC connections.
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Models, Options, & Accessories
| Model |
Description |
List Price |
Sale Price |
| 34901A |
20-Channel Armature Multiplexer Module for 34970A |
| $480.00 |  |
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| 34902A |
16-Channel Reed Multiplexer Module for 34970A |
| $566.00 | |
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| 34903A |
20-Channel Actuator/GP Switch Module for the 34970A |
| $414.00 | |
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| 34904A |
4 x 8 Two-Wire Matrix Switch Module for the 34970A |
| $480.00 | |
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| 34905A |
Dual 4-Channel 50 OHM RF Multiplexer Module for the 34970A |
| $756.00 | |
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| 34906A |
Dual 4-Channel 75 ohm RF multiplexer module for the 34970A |
| $756.00 | |
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| 34907A |
Multifunction Module for the 34970A |
| $359.00 | |
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| 34908A |
40-Channel Single-Ended Multiplexer Module for 34970A |
| $480.00 | |
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| Model |
Options |
List Price |
Sale Price |
| 34907A-A6J |
ANSI Z540 compliant calibration |
| $120.00 | |
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Specifications
Modules and accuracy specifications
| Scanning Inputs |
| Analog |
34901A, 34902A, and 34908A multiplexer channels |
| Digital |
34907A digital in and totalize
Scan list Scans channels in ascending order |
| Scan Triggering |
| Source |
Interval, external, button press, software, or on monitor channel alarm |
| Scan count |
1 to 50,000 or continuous |
| Scan interval |
0 to 99 hours; 1ms step size |
| Channel delay |
0 to 60 seconds per channel; 1 ms step size |
| External trig delay |
<300 µs. With monitor on <200 ms |
| External trig jitter |
<2 ms |
| Alarms |
| Analog inputs |
Hi, Lo, or Hi + Lo evaluated each scan |
| Digital inputs |
34907A digital in maskable pattern match or state change
34907A totalize: Hi limit only |
| Monitor channel |
Alarm evaluated each reading |
| Alarm Outputs |
4 TTL compatible
Selectable TTL logic Hi or Lo on fail |
| Latency |
5 ms (typical) |
| Memory |
| Battery backed, 4 year typical life1 |
| Readings |
50,000 with timestamp
Readable during scan |
| States |
5 instrument states with user label |
| Alarm Queue |
Up to 20 events with channel number, reading, and timestamp |
| System Features |
| Per-channel Math |
Individual Mx + B scaling and Min/Max/Average calculated real time |
| Power Fail Recovery |
Resumes scanning automatically |
| Relay maintenance |
Counts each relay closure and stores on module User resettable |
| Real-time clock |
Battery-backed, 4-year typical life1 |
| General Specifications |
| Power Supply |
100V/120V/220V/240V ±10% |
| Power Line Frequency |
45 Hz to 66 Hz automatically sensed |
| Power Consumption |
12 W (25 VA peak) |
| Operating Environment |
Full accuracy for 0ºC to 55ºC
Full accuracy to 80% R.H. at 40ºC |
| Storage Environment |
-40ºC to 70ºC1 |
| Weight |
Net 3.6 kg (8.0 lbs) |
| Safety |
Conforms to CSA, UL-1244, IEC 1010 Cat I |
| RFI and ESD |
CISPR 11, IEC 801/2/3/4 |
- Storage at temperatures above 40ºC will decrease battery life
- Software provided on CD-ROM and includes utility to create floppy disks for installation
- Interface and driver must be purchased and installed separately
- 90 MHz Pentium, 20 MB RAM
- Requires VISA command library for IEEE-488
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