Rotem AMP-50 Installation and operation manual

Area Monitor Probes
AMP-50 - Low Range GM Probe
0.5  Sv/h to 40,000  Sv/h
AMP-100 - Medium Range GM Probe
0.05 mSv/h to 10,000 mSv/h
AMP-200 - High Range GM Probe
0.01 Sv/h to 100 Sv/h
AMP-300 - Very High Range GM Probe
1mSv/h to 300 Sv/h
Operating & Maintenance Manual
Document # AMP-13122021.DOC
Version 1.4 – December 2021

Area Monitor Probes / Operating & Maintenance Manual (Sv/h) Page 2
Version/Revision Log:
Area Monitor Probes, Operating & Maintenance Manual for Sv/h units
Version # Date Revised
Pages
Comments
1.0 May 2002 Document # PRIR92J2.DOC for Sv/h units.
This issue is based on document #
PRIR91J2.DOC which is designated for R/h
units.
1.1 June 2002 1, 2, 4 Updated version, this log and table of contents.
7, 18, 24 Corrections
48 Appendix 5 – Electronic Drawings List.
Drawings are on PRIR91J2-DRW.DOC file
1.2
1.4
November 2017
December 2021
5,8,9
Added AMP-300 to Family
Updated AMP-200 range to 150 Sv/h
ROTEM Industries Ltd. reserves the right to change specifications without advance notice

Area Monitor Probes / Operating & Maintenance Manual (Sv/h) Page 3
Table of Contents
1. Area Monitor Probes ................................................................................................................... 5
1.1. General Description........................................................................................................ 5
1.2. Applications ................................................................................................................... 6
1.3. AMP Communication .................................................................................................... 6
2. Specifications ........................................................................................................................ 8
3. Operating Instructions ......................................................................................................... 12
3.1. Preparation for Use ....................................................................................................... 12
3.2. Starting-up .................................................................................................................... 12
3.3. General Functions ........................................................................................................ 12
3.4. Turning the Meter on .................................................................................................... 12
3.5. Dose Status ................................................................................................................... 13
3.6. Threshold Selection ...................................................................................................... 13
3.7. Alarms .......................................................................................................................... 15
3.8. Push-button Functions .................................................................................................. 16
3.9. Meter’s Parameters Setting Flowchart ......................................................................... 16
3.10. Battery Replacement .................................................................................................... 18
4. Communications ................................................................................................................. 19
4.1. Meter to AM-16 Area Monitor (wired) or to WRM ..................................................... 19
4.2. Direct Download from Meter to PC ............................................................................. 19
4.3. Hardware Components ................................................................................................. 19
4.4. Communication Protocol.............................................................................................. 20
5. Calibration .......................................................................................................................... 21
5.1. Switching the AMP’s Meter into Calibration Mode .................................................... 21
5.2. Calibration for AMP-50 ............................................................................................... 22
5.3. Calibration Procedure for AMP-50 .............................................................................. 23
5.4. Calibration for AMP-100 ............................................................................................. 24
5.5. Calibration Procedure for AMP-100 ............................................................................ 25
5.6. Calibration for AMP-200/300 ...................................................................................... 26
5.7. Calibration Procedure for AMP-200/300 ..................................................................... 26
5.8. CPU Unit Pulser Check ................................................................................................ 28
6. Energy Response ................................................................................................................. 29
7. Setting ID Number .............................................................................................................. 31
7.1. Factory Serial Number ................................................................................................. 31
7.2. Setting and Checking the ID #...................................................................................... 31
7.3. Correlation Between the Factory Serial Number and the ID # ..................................... 31
8. Electronic Block Diagrams Description ............................................................................. 32
8.1. Meter ............................................................................................................................ 32
8.2. WRM Adapter .............................................................................................................. 34
8.3. Detector ........................................................................................................................ 35
8.4. Cables ........................................................................................................................... 35
8.5. Power Supply ............................................................................................................... 35
9. Troubleshooting .................................................................................................................. 35
9.1. Meter does not turn on ................................................................................................. 36
9.2. Meter does not turn off ................................................................................................. 36
9.3. Meter parameters are not saved in the internal memory .............................................. 38

Area Monitor Probes / Operating & Maintenance Manual (Sv/h) Page 4
9.4. Display turns off or is incorrect .................................................................................... 39
9.5. Speaker does not alarm................................................................................................. 40
9.6. No communication with the WRM system .................................................................. 41
9.7. Instrument does not measure radiation ......................................................................... 42
9.8. Detector failure ............................................................................................................. 43
9.9. HV card failure ............................................................................................................. 44
Appendix 1 - AMP System Parts List. ......................................................................................... 41
Appendix 2 - Instructions for EPROM Replacement. .................................................................. 43
Appendix 3 - External Power Supply – From AM-16 or WRM Transmitter. .............................. 44
Appendix 4 – AMP View. ............................................................................................................ 45
Appendix 5 - AMP-50, AMP-100, AMP-200 Electronic Drawings List ..................................... 48

Area Monitor Probes / Operating & Maintenance Manual (Sv/h) Page 5
1. Area Monitor Probes
1.1. General Description
The Area Monitor Probe (AMP), a GM-tube based rate meter, is a state-of-the-art
microprocessor-based instrument. The AMP is designed for highly stable and accurate
measurements of dose rate from gamma radiation.
The AMP instrument is available in three versions:
AMP-50 - Covers a measuring range of 0.5 Sv/h up to 40,000 Sv/h.
AMP-100 - Covers a measuring range of 0.05 mSv/h up to 10,000 mSv/h.
AMP-200 - Covers a measuring range of 0.01 Sv/h up to 150 Sv/h.
AMP-300 - Covers a measuring range of 1 mSv/h up to 300 Sv/h.
The AMP is a lightweight and compact instrument with a large, four 7-segment LCD
display. The sophisticated software offers special features and optimal performance. The
wide dynamic range is obtained by automatic dead time correction, according to the preset
calibration. A special averaging function smoothes the readout and maintains fast response
time, while keeping the standard deviation at a minimum.
An automatic self-diagnostic procedure continuously checks both meter and detector and
reports any case of detector failure. The meter also alarms if the reading exceeds the
threshold value, or if the probe is in a field higher than the measuring range, or if the
battery potential drops below an acceptable value. The threshold can be selected from a list
of 11 preset values. When the meter is turned off the last parameters (threshold value,
calibration factor, dose status, communication mode, communication baud rate) are
retained in memory and will be recalled the next time the instrument is turned on.
The AMP may be used in one of four ways:
- by locally reading the smoothed digital display via the hand held meter display,
- by connecting the meter to a PC,
- by connecting the meter to an AM-16 Area Monitor (wired),
- by connecting the meter to an external WRM transmitter (wireless).
The AMP system contains four components (see Figure 1-1, AMP system block diagram):
meter, cable, probe head and communication interface. Connection between the meter and
the detector is accomplished via a four-wire shielded cable of up to 100 meters length. An
optional WRM transmitter may be connected via a standard four-wire telephone cable.
Two types of meter-to-PC cables are available.
The meter includes two boards: HV board and CPU board, including rate-meter and
display. A built-in RS-232 connection is used with the area monitor or WRM.
The detector includes an energy compensated GM tube, an amplifier and driver.
The AMP’s connections and probe head feature watertight sealing to allow for use in
underwater applications. Quick disconnect detectors allow customization of cable length
and facilitate easy de-contamination.

Area Monitor Probes / Operating & Maintenance Manual (Sv/h) Page 6
The detectors for the AMP-50, AMP-100 and AMP-200 include an energy compensated GM
tube, an amplifier and driver. The detector for the AMP-300 contains a silicon diode
The AMP’s connections and probe head feature watertight sealing to allow for use in
underwater applications. Quick disconnect detectors allow customization of cable length and
facilitate easy de-contamination.
1.2. Applications
 Real time monitor applications include any area with radiation levels from 0.01 Sv/h
up to 300 Sv/h. For example, the probe head may be placed directly onto a filter
housing or against a resin tank for the purpose of providing survey data or resin transfer
results.
 Replacement of traditionally “difficult to calibrate” underwater instruments.
 Provides a rugged detector for environments where the use of an electronic dosimeter is
undesirable.
 Provides real-time, remote monitoring in geometries developed for extendible “pole”
rate meters (TelePole, Teletector, etc.).
 Local readout of hand-held meter allows its use as a portable survey instrument.
Figure 1-1. The AMP System Block Diagram
1.3. AMP Communication
1.3.1. AMP to WRM Communication
WRM – MGP Wireless Remote Monitoring System
The AMP’s meter may be connected to an external WRM transmitter through an adapter.
In this mode, the AMP’s meter transmits its reading data using the same format as a
WRM
Transmitter
(Optional)
AMP
Rate Meter
Detector
Beware:
HV (500V) out
of this connector
Communication
Interface

Area Monitor Probes / Operating & Maintenance Manual (Sv/h) Page 7
dosimeter. Data is displayed on the computer screen, as appropriate for the application
(i.e. SMARTS OnLine, TeleView, WinWRM, etc.).
1.3.2. AMP to PC Communication
The AMP’s meter may be connected to a PC via an external cable. In this mode, the
AMP’s meter transmits its reading data using the WRM format. Data is displayed on the
computer screen, as appropriate for the application (i.e.AMP-View).
1.3.3. AMP Identification Number
Each AMP has a different identification number (ID#) consisting of six digits. When the
first ID# digit is (6), it indicates the monitoring software that the transmitting instrument
is of AMP type. The last 3 digits represent the instrument serial number.

Area Monitor Probes / Operating & Maintenance Manual (Sv/h) Page 8
2. Specifications
Display
LCD readout
showing:
-
Four digits for
accurate and easy
readout
- Detector failure
- Low battery
- Overflow
- Threshold
Audio Internally mounted piezo-electric element used for "chirp" and alarm functions
Measuring range AMP-50 0.5 uSv/h to 40 mSv/h (0.05 mR/h to 4000 mR/h)
AMP-100 0.05 mSv/h to 10 Sv/h (0.005 R/h to 1000 R/h)
AMP-200 0.01 Sv/h to 150 Sv/h (1.0 R/h to 15,000 R/h)
AMP-300 1 mSv/h to 300 Sv/h (0.1 R/h to 30,000 R/h)
Display range AMP-50 10 nSv/h to 40 mSv/h (0.001 mR/h to 4000 mR/h)
AMP-100 10 nSv/h to 10 Sv/h (0.001 R/h to 1000 R/h)
AMP-200 1 mSv/h to 150 Sv/h (0.1 R/h to 15,000 R/h)
AMP-300 1 mSv/h to 300 Sv/h (0.1 R/h to 30,000 R/h)
Controls - ON/OFF push-
button
- RESET push-button
- SPEAKER push-
button
Power source One 9-volt cell battery or external 9V power supply
Providing 50 hours minimum continuous operation
and automatic battery check under full load
Detector AMP-50 Energy compensated GM tube (ZP1201 or equivalent)
AMP-100 Energy compensated GM tube (ZP1301 or equivalent)
AMP-200 Energy compensated GM tube (4G60M or equivalent)
AMP-300 Silicon Diode
Sensitivity (137Cs) AMP-50 17 cps/mR/h
AMP-100 300 cps/R/h
AMP-200 77 cps/R/h
AMP-300 8.33 cps/R/h
Accuracy ±10% of reading within the measuring range
Energy range 70 keV to 2.0 MeV
Energy
dependence
±20% related to
137Cs
Angular
dependence Less than ±20% for 45° from centerline indicator
Temperature range Operation: -10°C to +50°C (15°F to 122°F)

Area Monitor Probes / Operating & Maintenance Manual (Sv/h) Page 9
Storage: -20°C to +60°C (-5°F to 140°F)
Humidity range 40% to 95% RH (non condensing)
Casing Meter: Aluminum
Detector: Aluminum, waterproof to 20 meters
Dimensions Meter: 12 cm x 7.2 cm x 3.4 cm (4.72" x 2.83" x 1.34")
Detector:
AMP-50 3.3 cm x 17 cm (1.3" x 6.7") without cable
AMP-100/200/300 2.45 cm x 14.3 cm (0.96" x 5.71") without cable
Weight Meter: 340 g (0.76 lbs) including battery
Detector:
AMP-50 223 g (0.45 lbs) without cable
AMP-100/200/300 131 g (0.29 lbs) without cable
Cable length Standard: 25 feet
Maximum: 350 feet
Display LCD readout showing:
- Four digits for accurate and easy readout
- Detector failure
- Low battery
- Overflow
- Threshold
Audio Internally mounted piezo-electric element
(Used for alarm and “chirp” functions)
Measuring unit AMP-50 [Sv/h]
AMP-100 [mSv/h]
AMP-200/300 [Sv/h]
Measuring range AMP-50 0.5 Sv/h to 40,000 Sv/h
AMP-100 0.05 mSv/h to 10,000 mSv/h
AMP-200 0.01 Sv/h to 150 Sv/h
AMP-300 1 mSv/h to 300 Sv/h
Display range AMP-50 0.01 Sv/h to 40,000 Sv/h
AMP-100 0.01 mSv/h to 10,000 mSv/h
AMP-200 0.001 Sv/h to 150 Sv/h
AMP-300 1 mSv/h to 300 Sv/h
Controls - ON/OFF push-button
- RESET push-button
- SPEAKER push-button

Area Monitor Probes / Operating & Maintenance Manual (Sv/h) Page 10
Power source One 9-volt cell battery or external 9V power supply
- 50 hours minimum continuous operation,
Using an alkaline battery (speaker off)
- Automatic battery check under full load
Detector AMP-50 Energy compensated GM tube (ZP1201 or equivalent)
AMP-100 Energy compensated GM tube (ZP1301 or equivalent)
AMP-200 Energy compensated GM tube (4G60M or equivalent)
AMP-300 Silicon Diode
Sensitivity (137Cs) AMP-50 1.7 cps/Sv/h
AMP-100 30 cps/mSv/h
AMP-200 7.7 cps/mSv/h
AMP-300 0.83 cps/mSv/h
Accuracy ±10% of reading within the measuring range
Energy range 70 keV to 2.0 MeV
Energy dependence ±20% related to 137Cs
Angular dependence Less than ±20% for 45 from centerline indicator
Temperature range Operation: -10C to +50C (15F to 122F)
Storage: -20C to +60C (-5F to 140F)
Humidity range 40% to 95% RH (non condensing)
Casing Meter: Aluminum
Detector: Aluminum, waterproof to 20
meters
Dimensions Meter: 12 cm x 7.2 cm x 3.4 cm (4.72" x 2.83" x 1.34")
Detector:
AMP-50  3.3 cm x 17 cm (1.3" x 6.7") without cable
AMP-100/200/300  2.45 cm x 14.3 cm (0.96" x 5.71") without cable
Weight Meter: 340 g (0.76 lbs) including battery