Specifications: 732C and 734C DC Voltage Reference Standards
Line voltage is accepted as shown in Table 1. AC line current at 120V ac is typically 0.13A. Table 1. Mains
732C Line Voltage Setting |
Line Voltage Accepted |
Frequency Accepted |
100 V |
90 V to 110 V |
50 Hz/60 Hz |
120 V |
108 V to 132 V |
50 Hz/60 Hz |
220 V |
198 V to 242 V |
50 Hz/60 Hz |
240 V |
216 V to 264 V |
50 Hz/60 Hz |
Battery |
Battery Operation |
At full charge, the internal battery operates the Product for a minimum of 72hours at 23±5 °C, with 0 mA to 0.1 mA total current drain at the outputs. |
Charging Time |
<36 hours with self-contained automatic battery charger |
External DC Input |
Rear-panel input for external 12 V dc to 15 V dc powers the Product indefinitely. The dc source must be rated ≥300 mA. |
Isolation |
Resistance from any of the Product binding posts to earth (chassis) ground or to ac line power is >10 000 MΩ shunted by <1000 pF. |
Guard and Ground Terminals |
Chassis ground connections are provided on both the front and rear panels. Access to the internal guard is provided by a front-panel binding post. |
Output Protection |
All outputs can be shorted indefinitely without damage to the Product. The 10 V output can withstand voltages from other sources as follows:
- For voltages ≤220 V dc, the Product is protected for a maximum of 50 mA continuous current.
- For voltage ≤1100 V dc, the Product is protected for a maximum of 25 mA continuous current or up to 0.6 joules for short periods of time.
|
Environmental |
Specified Operation |
Temperature Range: 15 °C to 35 °C |
Relative Humidity: 0% to 90% to 28 °C, to 80% to 35 °C, and to 50% to 50 °C, Noncondensing |
Altitude: 0 m to 1830 m (0 ft to 6000 ft) |
Non-specified Operation |
Temperature Range: 0 °C to 50 °C |
Relative Humidity: 0% to 90% Noncondensing |
Altitude: 0 m to 3050 m (0ft to 10 000ft) |
Storage (Battery Removed) |
Temperature Range: -40 °C to 50 °C |
Relative Humidity: Noncondensing |
Altitude: 0m to 12 200 m (0 ft to 40 000 ft) |
Electromagnetic Compatibility |
(EMC) The Product operates in Standards Laboratory environments where the radio frequency (RF) environment is highly controlled.
|
International |
IEC 61326-2-1; CISPR 11: Group 1, Class A
Controlled Electromagnetic Environment
Group 1 equipment has intentionally generated and/or use conductively coupled radio-frequency energy which is necessary for the internal functioning of the equipment itself.
Class A equipment is equipment suitable for use in all establishments other than domestic and those directly connected to a low voltage power supply network which supplies buildings used for domestic purposes.
Emissions which exceed the levels required by CISPR 11 can occur when the equipment is connected to a test object. The equipment may not meet the immunity requirements of 61326-1 when test leads and/or test probes are connected.
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USA (FCC) |
47 CFR 15 subpart B, this product is considered an exempt device per clause 15.103 |
Korea (KCC) |
Class A Equipment (Industrial Broadcasting & Communication Equipment)
This product meets requirements for industrial (Class A) electromagnetic wave equipment and the seller or user should take notice of it. This equipment is intended for use in business environments and not to be used in homes.
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Safety |
Safety |
IEC 61010-1, Installation Category II, Pollution degree 2 |
Ingress Protection |
IEC 60529: IP20 |
Mechanical Specifications |
|
734C Dimensions |
732C and 732C-7001 Dimensions |
Height |
17.8 cm (7.0 in) |
13.4 cm (5.28 in) |
Width |
43.2 cm (17.0 in) |
9.8 cm (3.85 in) |
Depth |
50.3 cm (19.8 in) including handles |
40.6 cm (16.0 in) |
Weight |
30.4 kg (67 lb) |
5.91 kg (13 lb) |
Performance Specifications
Output Voltages
10 V, 1 V, and 0.1 V are provided at separate binding posts referenced to the VCOM binding post.
Stability
Stability for the 732C outputs at Tcal ±1 °C and IN CAL indicator on is specified in Table 2.
Table 2. Standard Stability
Output Voltage |
Stability (± µV/V) |
30 Days |
90 Days |
1 Year |
10 V |
0.3 |
0.8 |
2.0 |
1 V |
0.6 |
1.2 |
3.0 |
0.1 V |
1.2 |
2.9 |
9.8 |
Table 3. Select Stability
Output Voltage |
Stability (± µV/V) |
30 Days |
90 Days |
1 Year |
10 V |
0.3 |
0.8 |
1.0 |
1 V |
0.6 |
1.2 |
2.5 |
0.1 V |
1.2 |
2.9 |
8.0 |
Noise at the Output Terminals
Output noise is specified for both day-to-day observations and for short-term observations, at k=1.
Table 4. Noise at the Output Terminals
Output Voltage |
S1 (±µV/V) |