732C and 734C DC Voltage Reference Standards

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Product Code: 732C AND 734C DC VOLTAGE REFERENCE STANDARDS

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Model: 732C and 734C DC Voltage Reference Standards

The simple way to maintain and disseminate the volt. The Fluke Calibration 732C DC Voltage Reference Standard is a RoHS compliant direct voltage reference used to maintain the volt in primary and secondary standards laboratories.

Individual 732C voltage standards provide 10 V, 1 V, and 0.1 V outputs and may be transported easily to remote locations while the dc reference is maintained in the laboratory.

The Fluke 734C DC Voltage Reference Standard consists of four electrically and mechanically independent 732C DC Reference Standards and a rack-width enclosure. Two model families, Base and Select, differ in that the Select models are two times more stable than the Base models. We Are the Authorize distributor in Bangaladesh and grateful to Tools Bangladesh.

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.
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.

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)
Output Voltage	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)
Output Voltage	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) [1]	S_ra (±µV/V) [2]	Noise (0.01 Hz to 10 Hz) (±µV/V rms)
10V	0.07	0.05	0.06
1 V	0.16	0.14	0.15
0.1V	1.4	1.3	1.0
[1] S₁ is the standard deviation about the regression (SDEV) of 90 days of at least twice daily stability test data. [2] S_ra is the SDEV of the stability test data with a 7-day moving average filter (MAF).

To obtain the best performance, use the Product in controlled environments with good system grounding and shielding practices. For radiated EMI fields from 0.25 to 1 V/m from 80 to 130 MHz, add 9 µV to the 1 V output, and 3.6 µV to the 0.1 V output. For ac mains conducted EMI of 1 Vrms from 75 to 80 MHz, add 1 µV to the 1 V output, and 0.7 µV to the 0.1 V output. The 10 V output is mostly unaffected by EMI fields up to 1 V/m or by conducted EMI up to 1 Vrms.

Output Current and Impedance

Table 5. Output Current and Impedance

Output Voltage	Output Current Limit	Output Impedance
10V	12mA [1]	≤1mΩ
1V	1.2mA [1]	≤1mΩ
100mV	20pA	≤100Ω
[1] Limit total output current to £0.1mA to realize specified battery operation

Retrace (Hysteresis) Error

Table 6 shows the change in 10V output voltage following a power outage (with the battery turned off) and temperature held constant in a 23 °C to 35 °C range.

Table 6. Retrace (Hysteresis) Error

Period that Power is Turned Off	Change in 10 V Output Value (±µV/V)
≤10min	0.1
10min to 24hr	0.25
24hr to 14days	0.25

Stabilization Time Requirements

Warmup times required after ac line and battery power have been turned off. The IN CAL indicator will be off, and recalibration will be necessary. The previously-specified retrace error specification can be used in the case of power interruptions.

With no power interruption	No stabilization time is required after the Product is moved to another environment.
Power off for <1 hr	1-hr warmup required
Power off for >1 hr	24-hr warmup required

Temperature Coefficient (TC) of Output

From 15 °C to 35 °C, the temperature coefficient is bound by the information in Table 7.

Table 7. Temperature Coefficient

Output Voltage	Temperature Coefficient (±µV per V/°C)
10 V	0.04
1 V	0.1
0.1 V	0.2

Output Change with Altitude

For an altitude change from calibration altitude, the output voltage change is bound by the information in Table 8.

Table 8. Output with Altitude

Output Voltage	Output Change (±µV/V per 1000ft)
10 V	0.05
1 V	0.09
0.1 V	0.18

Load Regulation

10V Output Load Change	Maximum 10V Output Change (±µV/V)
0 mA to 12 mA (no load to full load)	1
0 mA to 2 mA	0.1

Line Regulation

The outputs will change no more than 0.05 µV/V for any 10% line voltage change or for the entire operating range of the battery.

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