Time Electronics

5075 Precision Digital Multimeter

Time Electronics Ltd, Unit 5, TON Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom

T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 | mail@timeelectronics.co.uk | www.timeelectronics.com

Remote Control: This instrument implements the requirements of the IEEE - 488/1978

standard. The IEEE - 488 interface, allows remote control of the instrument by a suitable

computer or controller. Repetitive calibration work can be carried out with speed and

accuracy, giving printed results if required. The main limitations of the IEEE are:

1) A maximum of 15 devices on the bus.

2) The maximum bus length should not be greater than 20 m or number of devices

x 2, which ever is the shorter.

Scanner option: The scanner option for the 5075 DMM consists of an internally

fitted relay board. This board provides 10 input channels. Up to two boards may be

fitted giving up to 20 channels. The relays switch all 4 input terminals: V+, V-, I+, I–

to one of 10/20 inputs via the 25 way ‘D’ connectors. The scanner card may be used

for voltage, current, resistance, capacitance, frequency, and Pt100.

Scanner specifications

Maximum voltage....................................................................... 200 V DC / 150 V AC.

Maximum current...............................................................................1 A DC / 1 A AC.

Thermal EMF .................................................................... Less than 2 µV per contact.

Contact resistance.........................................................................Less than 150 mΩ.

Operating life.................................................................. Up to 200 million operations.

Operating time.................................................................................................... 20 ms.

General Specifications

Warm up ......................................................................................2 hours to full accuracy.

Interfaces.................................................................GPIB (cable optional, code 9597).

USB adaptor optional (code 9794).

Temperature performance ...........................................................Operating: 0 to 40 °C.

Full specification: 23 °C ± 5 °C.

Storage: -20 °C to 60 °C.

Humidity.................................Operating: (0 to 30 °C) < 90 %, (30 to 40 °C) < 70 %.

Altitude.........................................Operating: 0 to 3 km. Non operating: 3 km to 12 km.

Line power................................................................... 110/220/240 V AC, 50/60 Hz.

Dimensions ..................................................................... W 423 x H 89 x D 415 mm.

Weight.............................................................................................................. 8.5 kg.

Ordering Information

5075......................................................................... Precision Digital Multimeter

9726............................................................. Low Thermal EMF 10 Channel Scanner

9728............................................................................ 19 ” Universal Rack Mount Kit

ECFLA ......................................................................... EasyCal Calibration Software

(for options see separate datasheet)

9597......................................................................................................... GPIB Cable

9794......................................................................................... GPIB to USB Adaptor

C162..........................................................Traceable calibration certificate (Factory)

C130...................................................Accredited calibration certificate (ISO 17025)

Basic Functions

N Digits: Changes the reading resolution, which can be changed from 4 up to 7 digits,

depending on the scale selected.

Null: Null facility is available on all DC ranges, Ohms and Capacitance. Null is not

available on AC or frequency. When this key is pressed, the DMM will accept the

measured present value as the zero value for the range selected. If auto-range is on,

the unit will null each range. This is useful for cancelling an offset voltage or for zeroing

the value of the test leads on resistance.

Auto ranging: Auto-range (AUTO) will select the optimum range for the measurement.

This will introduce very little delay for the operator. The indicator above the keypad will

show when the DMM is in auto-range mode.

Filter: The filter alters the integration time of the reading. Filter times are 150 ms,

250 ms, 500 ms, 1 s, 2 s, 4 s, 8 s, 16 s, 32 s and off.

Internal temperature: Internal Temperature controlled at 35 ˚C ± 2 ˚C with an

ambient temperature of 20 to 28 ˚C.

Advanced Functions

Ohms compensation: Cancels the effects of any offset voltages by first measuring

the input voltage with the current source on and then measuring the voltage with the

current source off. The induced voltage is the difference between the two voltages, thus

giving a more accurate reading. Can be used in 2 and 4 wire mode for measurements

up to 100 kΩ. Ohms compensation doesn’t work on ranges above 100 kΩ.

Diode / Zener diode test: The diode test function will passes a current of 1 mA

through the diode under test and displays the diode forward voltage. May be used

for zener diodes up to 10 V.

Self test reset: The instrument can perform a self-test of all its digital circuits including

the IEEE and RAM.

Max – min: This function displays the maximum and minimum readings of the input.

By using the up and down keys the Maximum, Minimum or Present value input may

be displayed.

Peak hold: This function will display the peak value measured. By using the up and

down keys the Peak value or Present input may be displayed.

Component test: Used for component selection. If a component to be tested must

fall between a high and low value, component test can be used to make the selection

process quicker. It provides a visual display which moves a pointer between the high

and low values input, and also indicates whether the component is higher or lower in

value than the high and low points if it doesn’t fall between them.

PRT temp: Pt100 elements can be measured and displayed in ˚C using this function.

Dual display: Display Voltage and frequency of the input or the current and frequency

(if the AC module has been installed), for AC inputs.

Analogue filter: The analogue filter can be switched into the input circuit to remove

any high frequency noise that may be present on the input.

Auto dynamic filter: The Auto Dynamic filter automatically selects the most

appropriate filter period. The auto dynamic filter will increase or decrease the filter

period (up to the maximum set using the filter key) depending upon the stability of

the input signal.

Continuity / sample beep: Continuity tests can be performed by selecting this option

when in resistance mode. Any value below 30 % of the full range will produce the

continuity beep. Sample beep alerts the operator to a new reading being displayed.

Internal date / time: Date and Time can be displayed or entered using this option.

Internal temp: The internal temperature of the 5075 can be displayed and is updated

approximately every 5 minutes. The internal temperature is used to perform an

internal calibration when the temperature varies by 1˚C, thus insuring the temperature

coefficient of the unit remains negligible.

Due to continuous development Time Electronics reserves the right to change specifications without prior notice.

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