Time Electronics 7005 Specifications

Time Electronics

7005 Voltage / Current / Loop Calibrator

• Current measure: 125mA, source: 50mA

• Voltage measure: 25V, source: 21V

• Loop Current Sink

• Resolution 1μA or 1mV

• Accuracy 0.01%

• Transmitter and square root functions

• Auto-ranging feature

• Programmable steps and ramp

SOFTWARE

DESCRIPTION

A precision handheld instrument primarily used for the calibration and simulation of voltage and current loops.
The 7005 is a high accuracy calibrator incorporating source and measure capabilities. The compact and

lightweight design make it easily portable and ideal for plant operations and eld use. Combined with user

friendly controls and simple operation the 7005 is an excellent model for both process engineers and
calibration technicians.

The three operating modes provide a fast and easy solution to process applications; Loop current/voltage
source for simulating a transmitter and the loop supply, sink of loop current for simulating a transmitter, and
measurement of loop current/voltage for simulating a loop indicator.

Manual step of the output is possible at ve calibration points; 0%, 25%, 50%, 75% and 100% of span.

Automatic stepping of the output is also available, both up and down with programmable dwell times.

Continuous up/down ramping can also be performed, with user programmable ramp rates and dwell time

(top and bottom).

In source mode the range can be user programmed to any value between 0mA and 50mA, or 0V and 21V.
For example a low point of 10mA and a high point of 50mA could be set giving a span of 40mA.

• Supplied with battery charger & case

Measure mode provides both voltage and current measuring capability with 5 digit resolution. Ranges are

0 to ±5V and ±5 to ±25V, 0 to ±25mA and ±25 to ±125mA. Alternatively the signal can be measured as a
% of span for the following ranges; 4 to 20mA, 0 to 20mA, square root 4 to 20mA, or square root 0 to 20mA.

For all measurements a Min/Max recording function is available on demand.

An internal NiMH battery powers the unit for typically 9 hours continuous use and an external mains charger
is supplied as standard. An automatic power-down feature is incorporated to conserve battery life, which

can easily be disabled if not required. The unit is constructed in an impact resistant ABS case and connections
are made via 4 off 4mm binding terminal posts.

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7005 Specifications

TECHNICAL SPECIFICATION

DC VOLTAGE SOURCE

Range Resolution Accuracy Output Current Output Resistance

0 to 21V 1mV ±0.01% of setting ±4mV 50mA < 1Ω

DC VOLTAGE MEASURE (0 to ±25V, Auto-ranging)

Range Resolution Accuracy Measure Load

0 to 5V 0.1mV ±0.01% of reading ±0.4mV 10MΩ

5 to 25V 1mV ±0.01% of reading ±2mV 10MΩ

DC CURRENT SOURCE

Range Resolution Accuracy Output Voltage Loop Resistance

0 to 50mA 1µA ±0.01% of setting ±2µA 22V Max 1100Ω @ 20mA max

DC CURRENT MEASURE (0 to ±125mA, Auto-ranging)

Range Resolution Accuracy Measure Load

0 to 25mA 1µA ±0.01% of reading ±2µA 24.5Ω

25 to 125mA 10µA ±0.01% of reading ±20µA 24.5Ω

DC CURRENT SINK

Range Resolution Accuracy Min external drive Max external drive

0 to 50mA 1µA ±0.01% of setting ±2µA 4V 40V

Specifications are for 1 year and apply for use in the

temperature range of 18°C to 28°C after using the zero

SUMMARY OF FUNCTIONS

SOURCE MODE

• User programmable ranges - any values between 0 and 50mA or 0 and 21V.

• Fixed ranges are available: 4 to 20mA, 0 to 20mA, sqrt 4 to 20mA, sqrt 0 to 20mA.

• Fine adjustment (inching) is available for precise deviation from the calibration point.

• Manual step output - ve calibration points 0%, 25%, 50%, 75%, and 100%

• Automatic step output (up/down) - ve cal points with programmable dwell period.

• Ramp output - programmable ramp rate (0 to 20mA/sec or 0 to 20V/sec). Programmable dwell period (0 to 1000 seconds)

MEASURE MODE

• Voltage and current measuring capability with 5 digit resolution.

• Ranges: 0 to ±5V and ±5 to ±25V, 0 to ±25mA and ±25 to ±125mA.

• Signal can also be measured as a % of span on ranges: 4 to 20mA, 0 to 20mA, square root 4 to 20mA, square root 0 to 20mA.

• For all measurements a Min/Max recording function is available on demand.

GENERAL SPECIFICATION

Dimensions ............................................H165 x W90 x D45mm

Weight ....................................................0.42kg

Operating Temperature ..........................-10 to 50°C. Storage temperature -30 to 70°C.

Operating Humidity ................................0 to 90% non-condensing at 25°C

Power .....................................................Internal rechargeable NiMH battery pack. Battery life typically 9 hours. Auto power-down feature.

.................................................................. Full recharge from being exhausted will take approximately 16 hours with the unit switched off.

Optional Extras .......................................Calibration certicates – traceable to NPL and UKAS

ORDERING INFORMATION

7005 .......................................................Voltage/Current/Loop Calibrator

C184 .......................................................Factory Calibration Certicate (NPL traceable)

C195 .......................................................UKAS Calibration Certicate (ISO 17025)

Due to continuous development Time Electronics reserves

the right to change specifications without prior notice.

Time Electronics Ltd, Unit 11 Sovereign Way, Botany Industrial Estate, Tonbridge, Kent, TN9 1RH. United Kingdom.

T: [phone] F: [phone] E: [e-mail]

www.timeelectronics.com

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