User Manual
MX180T & MX180TP - Technical Specifications
Designed and built in Europe by:
Thurlby Thandar Instruments Ltd.
Glebe Road, Huntingdon, Cambridgeshire. PE29 7DR United Kingdom
Tel: +44 1480 412451 Fax: +44 1480 450409
Email: info@tti-test.com Web: www.tti-test.com
Brochure Part No. 82100-1XXX
OUTPUT SPECIFICATIONS
Output 1
Ranges:  Range 1 - 0V to 15V at 1mA to 10A; Range 2 - 0V to 30V at 1mA to 6A 
  Range 3 - 0V to 60V at 1mA to 3A; 
  R
ange 4* - 0V to 15V at 1mA to 20A; Range 5* - 0V to 30V at 1mA to 12A 
  R
ange 6* - 0V to 60V at 1mA to 6A; Range 7* - 0V to 120V at 1mA to 3A 
  (
ranges marked * are only available with output 2 disabled)
Operating Mode:  Constant voltage or constant current with automatic cross-over 
  a
nd mode indication.
Voltage Setting:  By direct numeric entry or quasi-analog rotary wheel; resolution 1mV.
Current Setting:  By direct numeric entry or quasi-analog rotary wheel; resolution 1mA.
Setting Accuracy:  Voltage - 0.05% of reading ± 3mV; (± 30mV on 120V range) 
  C
urrent - 0.3% of reading ± 3mA to 3A, 0.5% of reading ± 3mA to 10A: 
  0
.5% of reading ± 4mA to 20A
Setting Stores:  Up to 50 set-ups can be saved and recalled via the keyboard 
  (
or the digital interfaces on MX180TP).
Load regulation:  <0.01% +5mV (CV mode) for any load change using remote sense.
Line regulation:  <0.01% +5mV (CV mode) for a 10% line voltage change.
Ripple & Noise:  Typically <2mV rms, <15mV pk-pk, 3mV rms max. (20MHz bandwidth).
Transient Response:  <100us to within 50mV of set level for 5% to 95% load change.
Over Voltage Trip:  Settable 1V to 130V in 0.1V steps
Over Current Trip:  Settable 0.1A to 21A in 0.01A steps
Sensing:  Selectable local or remote sensing.
Output 2
Ranges:  Range 1 - 0V to 15V at 1mA to 10A; Range 2 - 0V to 30V at 1mA to 6A 
  Range 3 - 0V to 60V at 1mA to 3A
Operating Mode:  Constant voltage or constant current with automatic cross-over 
  a
nd mode indication.
Voltage Setting:  By direct numeric entry or quasi-analog rotary wheel; resolution 1mV.
Current Setting:  By direct numeric entry or quasi-analog rotary wheel; resolution 1mA.
Setting Accuracy:  Voltage - 0.05% of reading ± 3mV; (± 30mV on 120V range) 
  C
urrent - 0.3% of reading ± 3mA to 3A, 0.5% of reading ± 3mA to 10A: 
  0
.5% of reading ± 4mA to 20A
Setting Stores:  Up to 50 set-ups can be saved and recalled via the keyboard 
  (
or the digital interfaces on MX180TP).
Load regulation:  <0.01% +5mV (CV mode) for any load change using remote sense.
Line regulation:  <0.01% +5mV (CV mode) for a 10% line voltage change.
Ripple & Noise:  Typically <2mV rms, <15mV pk-pk, 3mV rms max. (20MHz bandwidth).
Transient Response:  <100us to within 50mV of set level for 5% to 95% load change.
Over Voltage Trip:  Settable 1V to 65V in 0.1V steps
Over Current Trip:  Settable 0.1A to 11A in 0.01A steps
Sensing:  Selectable local or remote sensing.
Output 3
Ranges:  Range 1 - 0V to 5.5V at 10mA to 3A; 
  Range 2 - 0V to 12V at 10mA to 1.5A.
Operating Mode:  Constant voltage or constant current with automatic cross-over 
  a
nd mode indication.
Voltage Setting:  By direct numeric entry or quasi-analog rotary wheel; resolution 10mV.
Current Setting:  By direct numeric entry or quasi-analog rotary wheel; resolution 10mA.
Setting Accuracy:  Voltage - 0.5% of reading ± 20mV; 
  C
urrent - 0.5% of reading ± 20mA
Setting Stores:  Up to 50 set-ups can be saved and recalled via the keyboard 
  (
or the digital interfaces on MX180TP).
Load regulation:  <0.1% +5mV (CV mode) .
Line regulation:  <0.1% +5mV (CV mode) for a 10% line voltage change.
Ripple & Noise:  Typically <2mV rms, <15mV pk-pk, 3mV rms max. (20MHz bandwidth).
Transient Response:  <100us to within 50mV of set level for 5% to 95% load change.
Over Voltage Trip:  Settable 1V to 14V in 0.1V steps
Over Current Trip:  Settable 0.1A to 3.5A in 0.01A steps
Sensing:  Selectable local or remote sensing.
Output Protection
External Voltage:  Output will withstand forward voltages of up to 140V (O/P 1), 70V (O/P 2) 
   or 20V (O/P 3).  Reverse protection by diode clamp, 3A max..
Fault Trip:  The output will be shut down if a trip conditions listed below occurs. 
O
VP or OCP  Exceeding over-voltage or over-current settings for the output.
Over Temperature:  Monitors internal temperature rise to protect against excess ambient 
  t
emperature or blocked ventilation slots.
Connection
Output Terminals:  Universal 4mm safety binding posts on 19mm (0·75”) spacing at front. 
  Screw terminals at rear (MX180TP only).
Terminals can accept fixed shroud 4mm plugs, standard 4mm plugs, fork terminals and bare wires.
Sense Terminals:  Sprung loaded screw-less terminals at front. 
  Screw terminals at rear (MX180TP only).
OUTPUT ON/OFF SWITCHING
Individual On/Off:  Individual keys for each output. On state indicated by key illumination.
Multi-On/Multi-Off:  Separate keys enable any combination of outputs to be turned on or off 
  e
ither simultaneously (default) or with timed delays from 10ms and 20s. 
  D
elayed operation indicated by flashing key illumination.
VOLTAGE TRACKING
The power supply can be set so that the voltage of output two is automatically set equal to that of 
output one and tracks any changes.
SETTING MEMORIES
Individual Output Memories
No. of Stores:  50 per output
Parameters Stored:  Range, Set Volts, Set Current, OVP, OCP
Linked Output Memories
No. of Stores:  50
Parameters Stored:  Range, Set Volts, Set Current, OVP, OCP (for all three outputs)
METERING (each Output)
Meter Function:  5 digit voltage and current meters (O/P 1 and O/P 2), 3.5 digit voltage and  
  current meters (O/P 3). Simultaneous display of actual and set values.
Meter Resolution:  1mV/0.1mA (O/P 1 and O/P 2), 10mV/10mA (O/P 3).
Meter Accuracy:  As per setting accuracy (CV mode). 
Additional Metering Functions
V x A  Calculated power in watts. Resolution 0.01W. Accuracy 0·5% ± 3 digits
DIGITAL BUS INTERFACES (MX180TP only)
The MX180TP offers full remote control and read-back using USB, RS-232, GPIB or LAN (compliant 
with LXI). All interfaces are at ground potential and opto-isolated from the output terminals. 
RS-232
Standard 9-pin D connector.
USB
USB 2.0 connection (backwards compatible with USB 1.x). Operates as a virtual COM port.
GPIB (IEEE-488)
The interface conforms with IEEE-488.1 and IEEE-488.2.
Ethernet (LAN)
Standard 10/100 base-T hardware connection. ICMP and TCP/IP Protocol for connection to Local 
Area Network or direct connection to a single PC.
LXI Compliance
LAN interface is compliant with LXI Core 2011. (LXI is the abbreviation for Lan eXtensions for 
Instrumentation).  For more information visit: www.aimtti.com/go/lxi
DIGITAL PROGRAMMING PERFORMANCE (MX180TP only)
Programming Speed
Command Delay:  Typically <200ms between receiving the command terminator for a step 
  voltage change at the instrument and the output beginning to change.
DRIVER SOFTWARE SUPPLIED (MX180TP only)
IVI Driver
An IVI driver for Windows is supplied. This provides support for common applications such as 
LabView*, LabWindows*, HPVEE* etc.
USB Driver
An installation file is supplied which calls a standard Windows* USB driver.
* LabView and LabWindows are trademarks of National Instruments. 
 HPVEE (now Agilent VEE) is a trademark of Agilent Technologies. 
* USB interface is supported for Windows 2000, XP, Vista, 7 and 8 (including 64 bit versions). 
 Windows is a trademark of Microsoft.
GENERAL SPECIFICATIONS
Input
AC Input:  110V to 240V AC ±10%, 50/60Hz. Installation Category II.
Input Power:  600VA max.
Temperature & Environmental
Operating Range:  +5ºC to +40ºC, 20% to 80% RH
Storage Range:  -40ºC to + 70ºC
Environmental:  Indoor use at altitudes up to 2000m, Pollution Degree 2.
Cooling:  Intelligent variable-speed fans. 
Safety & EMC
Safety:  Complies with EN61010-1
EMC:  Complies with EN61326
Physical
Size:  212 x 130 x 375mm (WxHxD) (half rack x 3U height) .
Weight:  5.0kg (MX180T); 5.1kg (MX180TP).
OPTIONS
Rack Mount 
19 inch rack mount for one or two power supplies.
Thurlby Thandar Instruments Ltd. operates a policy of continuous development and reserves the right to 
alter specifications without prior notice. 
Accuracy specifications apply for the temperature range 18°C to 28°C after 1 hour warm-up.








