Time Electronics 1017 User manual

User Manual
1017
DC Multifunction Calibrator
Version 1.3
11/23
Time Electronics Ltd
Unit 5, TON Business Park, 2-8 Morley Road,
Tonbridge, Kent, TN9 1RA, United Kingdom.
T: [phone] | F: [phone]
[e-mail] | www.timeelectronics.com

© 2023 Time Electronics Ltd.
All rights reserved.
Nothing from this manual may be multiplied, or made public in any form or manner, either
electronically or hard copy, without prior written consent from Time Electronics Ltd.
This also applies to any schematics, drawings and diagrams contained herein.
This manual provides operating and safety instructions for the Time Electronics product.
To ensure correct operation and safety, please follow the instructions in this manual.
Time Electronics reserves the right to change the contents, specifications and other
information contained in this manual without notice.

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Contents
1Introduction.......................................................................................................................................4
1.1 Description................................................................................................................................................ 4
1.2 Specifications ........................................................................................................................................... 5
1.3 Circuit Description .................................................................................................................................... 6
1.4 Power Supply Description......................................................................................................................... 6
2Front Panel Controls ........................................................................................................................7
3Operation...........................................................................................................................................8
3.1 Preparing for Use ..................................................................................................................................... 8
3.2 Using the 1017 ......................................................................................................................................... 9
3.3 Thermal EMF's ....................................................................................................................................... 10
3.4 Using the Deviation Control.................................................................................................................... 10
4Calibration.......................................................................................................................................11
4.1 Calibrating the 1017 ............................................................................................................................... 11
4.2 Zero Adjustment ..................................................................................................................................... 11
4.3 Calibrating the Full Scales...................................................................................................................... 12
4.4 Calibrating the Deviation Control............................................................................................................ 12
5Warranty and Servicing.................................................................................................................. 13

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1Introduction
1.1 Description
A high-performance portable multifunction calibrator with voltage, current, and resistance
ranges. The 1017 combines precision with simple operation, making it suitable for use in the
laboratory or field. Constructed in a compact and durable plastic case with a tilt stand/carry
handle it takes up minimal bench space and is easily transportable.
Five DC voltage ranges from 10 mV to 100 V full scale are available, each with a 6-digit (1 ppm)
resolution. The DC current range is 100 mA full scale with a 100 nA (1 ppm) resolution.
Resistance from 0.01 Ω to 10 kΩ is available in 0.01 Ω steps.
Stability and Temperature Coefficient: Long-term stability is achieved by the use of
high-quality components and modern resistor technology. The 1017 features a precision
reference diode that provides the input to the unit’s active circuitry. The special low-thermal
emf terminals reduce errors when working with microvolt signals.
Digital Deviation Control: Allows the output to be increased and decreased in % terms from
0 to ± 0.999 %. This provides a direct read-out of error and simplifies the recording results for
calibration certificates. It enables the user to immediately see if the unit under test is within
specification.
Portable Operation: The 1017 can be powered from mains supply or by the internal
rechargeable battery pack. Battery operation enables good performance where earth loop and
noise pick-up occurs. When the calibrator is plugged into the mains supply the internal
batteries will automatically start to recharge. If unplugged from the mains during operation the
internal batteries will continue to power the instrument. Full charge allows 12 hours typical
use. An LED indicator on the front panel displays the battery condition.

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1.2 Specifications
Voltage ranges / accuracy ......10mV range: 0 to 9.99999mV in 10 nV steps / ± 0.02 % of setting ± 0.005% of range.
100mV range: 0 to 99.9999 mV in 100 nV steps / ± 0.01% of setting ± 0.004% of range.
1V range: 0 to 999.999 mV in 1μV steps / ± 0.005 % of setting ± 0.002 % of range.
10V range: 0 to 9.99999 V in 10 μV steps / ± 0.005 % of setting ± 0.002 % of range.
100V range: 0 to 99.9999 V in 100 μV steps / ± 0.01 % of setting ± 0.004 % of range.
The above accuracies are independent of thermal emfs which can be 2 μV or more
depending on the type of leads and connections used.
Output resistance....................10 mV and 100 mV ranges: 10 Ω. 1 V and 10 V: < 150 mΩ. 100 V: < 1 Ω.
Drive current max....................10 and 100 mV ranges: as 10 Ω output resistance. V and 10 V: 150 mA; 100 V: 10 mA.
Current range / accuracy........100mA range: 0 to 99.9999 mA in 0.1 μA steps / ± 0.02 % of setting ± 0.004 % of range.
Drive voltage max ...................10 V.
Resistance range/accuracy ....10 kΩrange: 0 to 9.99999 kΩ in 0.01 Ω steps / ± 0.05 % of full scale.
Power rating ............................0.25 W per resistor.
Residual resistance ................Less than 200 mΩ.
Deviation control (V&I) ...........0 % to 0.999 % in 0.001 % steps. Deviation accuracy: V and I output, 0.5 %.
Temperature coefficient .........Voltage and current ranges: < 10 ppm/°C. Resistance ranges: < 30 ppm/°C.
Long term stability ..................5 ppm/day, < 15 ppm/90-day (at a constant temperature), < 25 ppm/year.
Short term stability – noise ....10 mV range: < 0.2 μV/sec, < 0.3 μV/10sec, < 0.4 μV/min.
100 mV range: < 0.2 μV/sec < 0.4 μV/10 sec, < 0.6 μV/min.
1 V range: < 0.2 μV/sec, < 0.5 μV/10sec, < 1.5 μV/min.
10 V range: < 1.0 μV/sec, < 2.0 μV/10sec, < 8.0 μV/min.
100 V range: <4 0 μV/sec, < 100 μV/10sec, < 500 μV/min.
100 mA range: < 0.2 μA/sec, < 0.4 μA/10sec, < 1.0 μA/min.
Warm-up and settling time .....Warm-up: < 10 mins to full accuracy. Settling: < 0.5 secs, 100 V range: 5 secs.
Output connections ................The output is via low thermal emf terminals (0.2 μV/°C). A mains earth terminal is
provided for screening purposes. Output polarity can be selected by a switch on
the front panel.
Power supply...........................The 1017 can be powered continuously from a 230 V 50/60 Hz (110 V to order)
main supply, or from the internal rechargeable NiMH battery pack.
Battery level indicator.............A front panel LED provides an indication of the battery condition.
General Specifications
Operating temperature ...........0 to 50 °C (32 to 120 °F). Full specification: 23 °C ± 5 °C.
Operating humidity ................10 to 90 % non-condensing 25 °C (77 °F).
Dimensions .............................W 250 x H 119 x D 314 mm.
Weight .....................................2.4 kg.
Optional extras ........................Calibration certificates - traceable (factory) or accredited (ISO 17025).
Country of origin .....................UK.
Ordering Information
1017 ..........................................Multifunction Voltage/Current/Resistance Calibrator
C152 .........................................Traceable calibration certificate (Factory)
C109 .........................................Accredited calibration certificate (ISO 17025)
Specifications apply at 23 °C ± 5 °C.

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1.3 Circuit Description
The calibrator employs a temperature compensated zener diode as the basic reference
source. This provides the input to an FET chopper amplifier system which operates in a
feed-back stabilised mode, and has a gain value determined by a set of precision wire-wound
resistors which are selected by a 6 decade thumbwheel switch. The output voltage is variable
from 0 V to 99.9999 V in 5 ranges.
An output resistance of typically 150 mΩis maintained on all ranges excluding the 100 V
range where the output resistance is 1 Ω. The maximum output current that can be drawn on
the 10 V and 1 V ranges is automatically limited to approximately 150 mA, or 15 mA on the
100 mV range. It must be noted that the current on the 10 mV range is limited by a 1 Ω
resistance. The output current on the 100 V range is 10 mA.
The 100 V output is generated by driving a step-up transformer with the ’chopped’ D.C. output
from the output of the module. Feedback around the complete amplifier regulates the output
to the set output value.
When the 100 mA range is selected, the output current is sensed by a precision resistor.
The voltage generated across this resistor is used to control the output drive voltage, so
regulating the output current.
The resistance range operates by directly switching the thumbwheel switch to the output
terminals.
The deviation control operates by injecting a current into the reference circuitry which either
increases or decreases the reference voltage.
To ensure complete reliability of the thumbwheel switch, double pole gold plated contacts are
used for each position – even if a contact fails, the 1017 will continue to work correctly.
1.4 Power Supply Description
The power supply employed in the 1017 is a Time Electronics design type PU2. This unit
incorporates a rechargeable battery pack for portable use, the pack is automatically charged
when mains power is connected. The PU2 is mounted internally on the rear panel of the
1017. The power supply is set for 220V – 240V AC mains unless otherwise specified.
When mains power is connected, the built-in charger of the PU2 provides the correct charge
current (40 to 45 mA) for the battery and automatically reduces this to a trickle charge
(3 to 4 mA) when the battery is fully charged. This management of the charge current means
that it is almost impossible to over-charge the battery, therefore maximising the battery life.
Approximately 30 to 40 hours use may be obtained between charges, depending on the
output, and function setting.

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2Front Panel Controls
1 – Output Terminals.
2 – Case Terminal.
3 – Reverse / Off / Normal Switch.Selects the output polarity.
4 – Power On / Off Switch. Indication is shown by the Battery Level Indicator.
5– Functions and Range Selection Buttons.Selects the function for use.
The labelled range is based on maximum output of the function.
6– Output Setting Switch. Sets the value of output, on a 6-digit thumbwheel switch.
7– Deviation Digit Switch. Selects the value of Deviation.
8– Battery Level Indicator. Shows the state of charge of the batteries. When green the unit
is powered on and battery level is good. When red, the batteries need recharging.
9– Positive / Off / Negative Deviation Control. Applies a Positive or Negative
Deviation to the output as a percentage.
1
2
3
4
5
7
8
9
6

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3Operation
3.1 Preparing for Use
If using the 1017 unplugged from a mains supply, you must first check the battery level. The
battery level is continuously monitored on a front panel LED indicator which also serves as a
supply on-off indication. When green the unit is powered on and battery level is good. When
red, the batteries need recharging. Recharge them by plugging the 1017 into a mains supply.
It will take approximately 12 to 14 hours to fully recharge the battery pack.
You can use the 1017 when it is plugged into the mains supply irrespective of the battery
state. The batteries should also be checked during operation.

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3.2 Using the 1017
1. Set the correct function and range from the selection buttons. Ensure that the output
polarity switch is ’OFF’ and that nothing is dialled up on the digit switch.
2. Set the required value on the output setting switch.
3. The output can be supplied to the unit under test by selecting the output polarity switch.
Note: When the output switch is set to the ’OFF’ position, there is a short circuit on the output terminals.
Caution:must be exercised when using the 100 V range against possible electrical shock.

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3.3 Thermal EMF's
When using the 1017 to provide a precision voltage of less than 1mV, care must be taken to
avoid Thermal EMF’s. These occur where temperature differences are present at the junctions
of dissimilar metals, e.g. – A normal solder to copper junction has a thermal EMF of
approximately 3 µV/°C. Errors in the 1017 under stable temperature conditions are typically
less than ± 0.2 µV/°C.
3.4 Using the Deviation Control
Note:The digital deviation control has no effect if used on the resistance range.
To apply a percentage deviation to the output, select either positive or negative deviation with
the control switch and dial up the percentage deviation required on the digit switch.
Alternatively, if the output is set to the correct value and the reading on the U.U.T. reading
differs from this, adjust the deviation control to give the required value. The error can then be
read directly, as a percentage, from the deviation control.

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4Calibration
4.1 Calibrating the 1017
The 1017 can be calibrated with a high accuracy D.M.M. with D.C. voltage, current and
resistance ranges with a specification of at least 4 times greater than that of the 1017’s
specifications. Calibration is best carried out on fully charged batteries without the mains supply
connected to ensure that no mains supply interference takes any effect on the readings.
4.2 Zero Adjustment
Select 1 V range, set all digit switches to zero, adjust zero trimmer on module to within
± 6 µV of absolute zero.
Range Allowance Adjust Pot
1 V 6 µV 1 V ZERO ON MODULE
REF Voltage
1 V Zero

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4.3 Calibrating the Full Scales
After checking the zero settings you may then calibrate the full scales.
Set the digit switch to ’999999’.
Select 1 V range:
Adjust the 1 V Full Scale with the ’CAL’ trimmer which is on the potted module.
Adjust this to read 999.999 mV to within 20 µV.
Select 10V range:
Adjust the 10 V F.S. trimmer, VR5, to read 9.99999 V to within ± 200 µV.
Select 100 mV range:
Adjust the 100 mV & 10 mV F.S. trimmer VR3, to read 99.9999 mV to within ± 4.3 µV
Select 10 mV range:
Check 9.99999 mV F.S. is within 1.3 µV (note the adjustment is done on the 100 mV range)
Select 100 V range:
Adjust the 100 V F.S. trimmer, VR6, to read 99.9999 V to within ± 3.5 mV.
Select 100 mA range:
Adjust the 100 mA F.S. trimmer, VR7, to read 99.9999 mA to within ± 6 µA.
4.4 Calibrating the Deviation Control
Set the output to the 1 V on the 1 V range and set the deviation to +0.999 %. Adjust the output
using the + Deviation trimmer, VR9, to read 1.01 V to within 5 mV.
Leaving the output at 1 V on the 1 V range, set the deviation to –0.999 %. Adjust the output
using the – Deviation trimmer, VR8, to read 0.99 V to within 5 mV.
The calibration procedure is now complete.

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5Warranty and Servicing
Warranty
Time Electronics products carry a one-year manufacturer’s warranty as standard.
Time Electronics products are designed and manufactured to the highest standards and
specifications to assure the quality and performance required by all sectors of industry.
Time Electronics products are fully guaranteed against faulty materials and workmanship.
Should this product be found to be defective, please contact us using the below details.
Inform us of the product type, serial number, and details of any fault and/or the service
required. Please retain the supplier invoice as proof of purchase.
This warranty does not apply to defects resulting from action of the user such as misuse,
operation outside of specification, improper maintenance or repair, or unauthorized
modification. Time Electronics’ total liability is limited to repair or replacement of the product.
Note that if Time Electronics determine that the fault on a returned product has been caused
by the user, we will contact the customer before proceeding with any repair.
Product Registration
You can register your product at: www.timeelectronics.com/contact/product-registration
Registering your product will enable us to maintain a record of purchase for your warranty.
You can also use the web form to provide feedback about our products and services.
Calibration and Repair Services
Time Electronics offers repair and calibration services for all the products we make and sell.
Routine maintenance by the manufacturer ensures optimal performance and condition of the
product. Periodic traceable or accredited calibration is available.
Contacting Time Electronics
Online:
Please visit www.timeelectronics.com and select Technical Support from the Contact links.
From this page you will be able to send information to the Time Electronics service team who
will help and support you.
By phone:
[phone]
By email:
[email protected]

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Returning Instruments
Prior to returning your product please contact Time Electronics. We will issue a return
merchandise authorization (RMA) number that is to accompany the goods returning.
Further instructions will also be issued prior to shipment. When returning instruments, please
ensure that they have been adequately packed, preferably in the original packing supplied.
Time Electronics Ltd will not accept responsibility for units returned damaged.
Please ensure that all units have details of the service required and all relevant paperwork.
Send the instrument, shipping charges paid to:
Time Electronics Ltd
Unit 5, TON Business Park, 2-8 Morley Road,
Tonbridge, Kent, TN9 1RA.
United Kingdom.
Tel: [phone]
Fax: [phone]
Email: [e-mail]
Web Site: www.timeelectronics.com
Disposal of your old equipment
1. When this crossed-out wheeled bin symbol is attached to a product it means the product is
covered by the European Directive 2002/96/EC.
2. All electrical and electronic products should be disposed of separately from the municipal waste
stream via designated collection facilities appointed by the government or the local authorities.
3. The correct disposal of your old appliance will help prevent potential negative consequences for
the environment and human health.
4. For more detailed information about disposal of your old appliance, please contact your city
office, waste disposal service or return to Time Electronics.