Transmille 3000ZR Series User manual

LABORATORY REFERENCE STANDARDS
3000 PRECISION SERIES
Ü
3000ZR
PRECISION VOLTAGE REFERENCE

Version 3.00
Aug 2013
All product names are trademarks of their respective companies
3000ZR Series
Precision Voltage Standard
Operation Manual

3000ZR PRECISION VOLTAGE STANDARD
OPERATION MANUAL
Transmille Ltd. Page 2
Guarantee and service
Transmille Ltd. guarantees this instrument to be free from defects under
normal use and service for a period of 1 year from purchase. This guarantee
applies only to the original purchaser and does not cover fuses, or any
instrument which, in Transmille’s opinion, has been modified, misused or
subjected to abnormal handling or operating conditions.
Transmille’s obligation under this guarantee is limited to replacement or
repair of an instrument which is returned to Transmille within the warranty
period. If Transmille determines that the fault has been caused by the
purchaser, Transmille will contact the purchaser before proceeding with any
repair.
To obtain repair under this guarantee the purchaser must send the instrument
in its original packaging (carriage prepaid) and a description of the fault to
Transmille at the address shown below. The instrument will be repaired at the
factory and returned to the purchaser, carriage prepaid.
Note :
TRANSMILLE ASSUMES NO RESPONSIBILITY FOR DAMAGE IN TRANSIT
THIS GUARANTEE IS THE PURCHASER’S SOLE AND EXCLUSIVE
GUARANTEE AND IS IN LEIU OF ANY OTHER GUARANTEE, EXPRESSED OR
IMPLIED. TRANSMILLE SHALL NOT BE LIABLE FOR ANY INCIDENTAL,
INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS.
Transmille Ltd.
Unit 4, Select Business Centre
Lodge Road
Staplehurst
Kent
TN12 0QW
United Kingdom
Tel : [phone]
Fax : [phone]
EMail : [email protected]
Web : www.transmille.com

3000ZR PRECISION VOLTAGE STANDARD
OPERATION MANUAL
Transmille Ltd. Page 3
TABLE OF CONTENTS
GUARANTEE AND SERVICE .........................................................................................2
3000ZR Precision Voltage Standard...................................................................4
Main Features.................................................................................................4
Unpacking / Inspection....................................................................................4
Power Input.....................................................................................................5
Initial Power Up and Stabilisation....................................................................5
Design Notes...................................................................................................6
Features..............................................................................................................6
Zener Bank Terminal Configuration.................................................................6
Status Indicators .............................................................................................6
Operating Notes..............................................................................................7
Connecting to the 3000ZR ..............................................................................7
Connection Recommendations.......................................................................8
Specifications....................................................................................................10
Care & Maintenance.........................................................................................11
Cleaning the 30000ZR ..................................................................................11
Handling Precautions....................................................................................11
Servicing Information.....................................................................................11

3000ZR PRECISION VOLTAGE STANDARD
OPERATION MANUAL
Transmille Ltd. Page 4
3000ZR Precision Voltage Standard
The 3000ZR is an integrated 1.018V and 10V reference standard using a multi cell
zener reference. Power is supplied via a DC power supply, with internal
rechargeable battery backup. The instrument provides indication of power, reference
ready and low battery conditions.
Main Features
 Multi cell zener references for inter-comparison
 Reference cells with integrated temperature controlled environment
 Robust solid state design
 Outputs can sustain short circuit without damage
 Lightweight and transportable
Unpacking / Inspection
When unpacking the reference for the first time, ensure there are no signs of
external damage. Check the case, terminals and connectors on both the front
and the rear of the instrument.

3000ZR PRECISION VOLTAGE STANDARD
OPERATION MANUAL
Transmille Ltd. Page 5
Power Input
The 3000ZR operates on a supplied DC power supply. This is connected to the
rear of the unit using the designated socket.
Initial Power Up and Stabilisation
On initial unpacking the reference will be set to the OFF condition. Ensure the
DC power supply is connected and reference is switched to the ON position –
the ON LED should illuminate.
After a period of stabilisation the READY LED will illuminate to indicate the
references have reached a stable condition and are ready.
If at any time the LOW BATTERY LED illuminates, check power is available
from the DC power supply.

3000ZR PRECISION VOLTAGE STANDARD
OPERATION MANUAL
Transmille Ltd. Page 6
Design Notes
The 3000ZR is built using multi cell zener reference technology with integrated
temperature controlled environments for each individual cell. The is allows a robust
solid state design with the ability to sustain short circuit without damage, which
retains a lightweight and transportable form factor.
Features
Functions of the terminal post connections :
Zener Bank Terminal Configuration
10V Output Red Terminal (Top)
1.018V Output Red Terminal (Middle)
0V (Common) Connection Black Terminal (Bottom)
Earth Connection Green Terminal (Far Right)
Front Panel Indicators :
Status Indicators
On Power switch to ON position -
Voltage reference powered up
Ready References stabilised
Low Battery Internal 4-hour battery charge low
(no DC power available)

3000ZR PRECISION VOLTAGE STANDARD
OPERATION MANUAL
Transmille Ltd. Page 7
Label Reference Information
Model Number Model number reference for product
Serial Number Unique serial number for product
Rear Panel Connection Description
Power In DC External DC power input
(for supplied DC mains adapter)
RS232 Interface Factory use only
Operating Notes
This section details operational and environmental considerations for the 3000ZR
precision voltage reference. Follow these instructions when operating or storing the
voltage reference.
Connecting to the 3000ZR
CAUTION
Do not apply voltage to the 3000ZR voltage reference as this will cause damage and
affect the performance of the reference.

3000ZR PRECISION VOLTAGE STANDARD
OPERATION MANUAL
Transmille Ltd. Page 8
Connection Recommendations
For optimum results use a set of low thermal test leads. Measurements should be
taken using a combination of normal and reversal connections to further eliminate
thermal EMFs introduced by interconnections.
Fig. 1 : 1.018V Reference Connection (Normal) Example
Fig. 2 : 10V Reference Connection (Normal) Example

3000ZR PRECISION VOLTAGE STANDARD
OPERATION MANUAL
Transmille Ltd. Page 9
Fig. 3 : 1.018V Reference Connection (Reversal) Example
Fig. 4 : 10V Reference Connection (Reversal) Example
Fig. 5 : Earth Connection Example
Reversal
Point
Reversal
Point

3000ZR PRECISION VOLTAGE STANDARD
OPERATION MANUAL
Transmille Ltd. Page 10
Specifications
A high performance 4-bank voltage reference with 1.018V and 10V outputs
per bank.
GENERAL SPECIFICATIONS
DESCRIPTION Precision zener voltage reference
POWER Mains powered with internal battery backup supply
OUTPUTS 1.018V and 10V outputs - separate terminals for each
voltage
DIMENSIONS 45cm x 44cm x 9cm
PERFORMANCE SPECIFICATIONS
OUTPUT ACCURACY
1.018V 0.8ppm/Month • 2ppm/Year
10V 0.8ppm/Month • 2ppm/Year

3000ZR PRECISION VOLTAGE STANDARD
OPERATION MANUAL
Transmille Ltd. Page 11
Care & Maintenance
The only maintenance instructions for the 3000ZR precision resistance reference is
periodic cleaning. See below for details on the cleaning procedure and precautions
for handling.
Cleaning the 30000ZR
To keep the external enclosure of the 3000ZR in good condition, clean the outer
case with a soft cloth. Do not use any liquids in cleaning the enclosure – removal of
surface dust is all that is recommended.
CAUTION
Do not uses cleaning fluids or solvents for cleaning as these may damage the
enclosure and affect the plastic materials used in the precision resistance standard.
Handling Precautions
The 3000ZR is designed for mechanical stability, but should not be subjected to
excessive shock or be dropped. Transportation is recommended using the original
packaging with avoidance of extreme changes of temperature.
Servicing Information
The 3000ZR is provided certified from the factory, and uses high precision voltage
references and are not user repairable. If the instrument is damaged it should be
returned to the factory for repair and recalibration.