
Sentry Series 50
USES:
• Production Testing of Appliances,
Instruments and Information
Technology Equipment with 3 Prong
Power Cords
• Transformer Electrical Safety Testing
• Electric Motor Safety Testing
• Variety of Electronic Components
• Testing Electronic Components
FEATURES:
• Adjustable Output Current from
1A to 30A AC
• Adjustable High and Low
Resistance Limits
• Adjustable No-Load Voltage Limit
• Current, Resistance and Voltage
Display
• Zero Offset of Lead Resistance
• Programmable Test Time
• 4 terminal Kelvin Connection
• Under Test Warning Indicator
• Setup Storage
• Remote Control
• Built-in Calibration Software
• Beeper On/Off
Introduction
The Sentry 50 provides high current testing of ground continuity between chassis and
power cord ground on a wide variety of electrical products and appliances. The unit is
designed for maximum flexibility and operator convenience in mind. The Sentry 50 is
ideal for Electrical Safety Compliance Testing in a variety of environments.
Description
Wide Test Current Range User programmable output current, 1A to 30A AC in
0.01A steps, provides extensive coverage for testing to UL, CSA, VDE, IEC and other agency
safety requirements.
Programmable High and Low Resistance Limits A resistance measure-
ment range from 0.1mΩto 510mΩand user programmable high and low resistance limits with pass/fail indication.
Remote ControlCan be incorporated into an automated manufacturing environment
with remote start and Go/NoGo results output through the rear panel PLC interface.
Connection to Sentry 10 through 35 AC/DC Hipot TestersThe Sentry
50 can be used alone or connected to a Sentry 10 - 35 for complete product testing with
the push of one button. When the Sentry 50 has completed a continuity test, with pass
indication, it can remotely start the Sentry 10 - 35 for a Hipot test in sequence.
Easy to Use The simple front panel of the Sentry 50 requires less effort to operate.
Digital display and user friendly control allows test parameters and limits to be set easily
without the high current activated. The instrument can be put on line fast, providing useful measurements by operators with little to no training.
Built-in Calibration via Software Front panel display of an operator prompted
calibration routine makes for no internal adjustments.
1-800-253-1230
Fax 1-978-461-4295
Intl. 1-978-461-2100
For more information about special purchase,
rent & lease options, call
For more detailed specifications, visit
www.quadtech.com
High Current Ground Bond Tester
HIPOT • LCR METERS • MEGOHMMETERS • MILLIOHMMETERS • DECADES • STANDARDS

Sentry 50
Output Current: Range: 3.00A to 30.00A AC, Setting
0.01A/step
Useable down to 1.00A
Accuracy: +/- (1% of setting + 0.3A)
+/- (2% of reading + 5 counts)
Frequency: 50 or 60 Hz
Voltage Limit: Range: 6.0 to 15VAC, Setting 0.01V/step
Resistance: Range: 0.1mΩ - 510.0mΩ, 4 digits,
Hi/Lo limits
Accuracy: +/- (1% of reading + 5 counts)
Offset Function: 0 to 100mΩ offset, user selected
Test Time: 0.1 - 999sec (+/-20ms) for I < 25A AC
0.1 - 60sec (+/-20ms) for I ≥ 25A AC
setting 0.1sec < 100sec and 1 sec ≥
100sec
continuous operation mode
Remote Control: Remote Start, Stop, Interlock, Pass/Fail
Output via 9-Pin D series connector and
terminal strip
Start/Stop/Interlock: active low
Pass/Fail Output: via relays, 115V AC 300mA
Mechanical: Bench mount with carry handle
Dimensions: (w x h x d):11x4x14 in
(270x100x350mm)
Weight: 25 lbs (12kg)
Shipping: 30 lbs (14kg)
Environmental: Meets MIL-T-28800E, Type 3, Class 5
Operating: 0 to + 40° C
Humidity: <75%
Storage: - 10 to + 60° C
Warm-up Time: 1minute
Power: • 90 - 130V AC • 50 or 60Hz
• 200 - 250V AC • 300W max
Sentry 50 Ground Bond Tester
Includes:
150285 Instruction Manual
700070 Power Cable
G15 Ground Continuity Lead Set
Calibration Certificate Traceable to NIST
Fuse
Optional Accessories:
Calibration Data
S05 Foot Switch
S15 Interconnection Cable to
S10-S35
S16 Rack Mount Kit
G13 Corded Product Adapter (115V)
G14 Power Entry Adapter
G15 GC lead set (std w/unit)
G16 International Power Strip
G25 Corded Product Adapter
(240V)
Ordering Information
Product Specifications
510mΩ
Resistance
210mΩ
34mΩ
3A
30A
Current
Specification Range
3.4mΩ
PN030075/A2
(See Figure Above)
For more detailed specifications, visit www.quadtech.com • For more information about special purchase, rent & lease options, call
1-800-253-1230 • Fax 1-978-461-4295 • Intl. 1-978-461-2100
5 Clock Tower Place, 210 East, Maynard, MA 01754