C.A.T4
Dynamic range	120 dB at 40Hz
Dynamic overload protection	40 dB at 50Hz (automatic)
Depth accuracy**	Cables: ± 5% tolerance 0.1m at 3m Sondes: ± 5% tolerance 0.1m at 7m
Locating accuracy	± 10% of depth
Horizontal GPS position accuracy	3m CEP (Circular Error Probable - radius of error circle)
Batteries	2x D cells (LR20) alkaline batteries
Weight	2.3kg (including alkaline battery)
Dimensions (HxWxD)	710x255x65mm
Material	Injection-molded plastic
Protection class	IP54 (dust and splash-water protected)
Operating temperature	-20°C to +50°C
Storage temperature	-20°C to +70°C
Data interface	USB 2.0
Data storage capacity	2 GB
Calibration due warning	Countdown starting 31 days before expiry

** C.A.T4 locates at greater depth, but with lower accuracy.
 

C.A.T4 Technical Data			Depth guidance (m)
Locating performance	Frequency range	Sensitivity at 1m	Good conditions	Poor conditions
Power signals (P)	50Hz - 1.5kHz	3 mA	3	2
Radio signals (R)	15kHz - 30kHz	25 µA	2	1
Genny4 signal (G)	32.768kHz  ± 20Hz 131.072kHz  ±20Hz	5 µA	4	2
Avoidance Mode (A)	P + R + G As above	As above	4	2

 

Passive frequencies:	C.A.T4	C.A.T4+	eC.A.T4	eC.A.T4+	gC.A.T4	gC.A.T4+
Power	✔	✔	✔	✔	✔	✔
Radio	✔	✔	✔	✔	✔	✔
Active frequencies:	C.A.T4	C.A.T4+	eC.A.T4	eC.A.T4+	gC.A.T4	gC.A.T4+
Genny4 signal locating	✔	✔	✔	✔	✔	✔
Functions:	C.A.T4	C.A.T4+	eC.A.T4	eC.A.T4+	gC.A.T4	gC.A.T4+
Avoidance Mode™	✔	✔	✔	✔	✔	✔
Genny™ signal locating	✔	✔	✔	✔	✔	✔
Power signal locating	✔	✔	✔	✔	✔	✔
Radio signal locating	✔	✔	✔	✔	✔	✔
Locating frequency for small-diameter cables	✔	✔	✔	✔	✔	✔
eCert™	✔	✔	✔	✔	✔	✔
Dynamic overload protection	✔	✔	✔	✔	✔	✔
Depth measurement		✔		✔		✔
StrikeAlert™	●	●	●	●	✔	✔
Data logging			✔	✔	✔	✔
Service due indicator			✔	✔	✔	✔
SWING™ warning			✔	✔	✔	✔
CALSafe™			●	●	✔	✔
Bluetooth®					✔	✔
GPS/GNSS					✔	✔

✔ Available, enabled by default
● Optional

 

Dynamic Overload Protection

Thanks to Radiodetection’s unique digital signal processing, C.A.T4 devices can filter out electrical interference. Dynamic overload protection allows C.A.T4 series devices to operate in areas with strong electrical fields, for example near substations and beneath high-voltage cables, where the detection circuits of other locators become overloaded and stop working.

Avoidance Mode™

This mode allows an area to be surveyed simultaneously and efficiently for power, radio, and Genny signals. Users can adjust the sensitivity for each mode/signal on the C.A.T4. This makes it possible to detect buried utilities in a single pass. With Real Sound, the user receives acoustic feedback derived directly from the signal of the detected utility. This makes locating easier and increases locating speed while maintaining safety.

StrikeAlert™

The optional StrikeAlert™ function minimizes the risk of missing shallow buried cables. The function has been improved and optimized to reduce the number of false alarms.

SWING™

Radiodetection C.A.T devices are designed for exceptionally fast response to even the smallest detectable underground signals. Radiodetection investigations into detecting underground signals have shown that a user’s ability to locate buried utilities is directly influenced by how the device is handled, such as swinging the device too quickly or carelessly.

To further reduce the risk of cable strikes, eC.A.T4 devices are equipped with sensors that detect such improper handling and warn the user with a message that is also stored in the data log.

Service and Calibration

Service Due Indicator and CALSafe™

The risks of delaying a survey because a C.A.T4 calibration has expired can be minimized. eC.A.T4 series devices provide a 30-day countdown to the expiry date of the calibration certificate. The optional CALSafe function can be set to prevent use of the device when calibration has expired. This ensures compliance with company policies. In addition, the service interval can be customized by the user within a one-year period using the C.A.T Manager software.

eCert™

eCert enables a fast and thorough check of the key circuit elements within the C.A.T4 and validates their performance over the internet against the original factory calibration.

eCert™ is activated via the C.A.T Manager software and provides a fast, thorough, and practical test of the core locating circuit within the C.A.T4, validating device performance against the original factory calibration. After an eCert test run, a Radiodetection calibration certificate for the relevant C.A.T4 can be printed or saved.

In addition, C.A.T Manager can, if desired, reproduce the original factory calibration certificate or any eCert certificate issued for the device.

As part of a complete service package, Radiodetection also offers comprehensive factory service and recalibration options, including a full inspection of mechanical integrity and functional testing.

Data Logging/Analysis and Software Updates

Built-in Data Logging

Devices in the eC.A.T4 and gC.A.T4 series can store key measurement and operating data for a full year.
gC.A.T4 devices are equipped with an internal GPS/GNSS receiver that records position data every second, logs it in the C.A.T4 device’s internal memory, and displays the user’s work location.
C.A.T Manager™ can be used to export log files. This enables extensive usage data analysis, which can be helpful in identifying training and development needs and provides independent records of device usage history.
gC.A.T4 data logs can be exported in CSV, XLM, or KML file formats, which can be easily imported into mapping services such as Google Maps® or Google Earth®.
By backing up the data on a PC, there are no limits to recording over the entire lifetime of the product.

The C.A.T Manager™ Software

C.A.T4 locating devices are supported by the dedicated C.A.T Manager software package. With this Windows® PC program, operations, fleet, and site managers can minimize downtime through regular software updates, reproduced calibration certificates, and online calibration via eCert.
To tailor the device to preferred working practices or intended use, C.A.T Manager allows C.A.T4 functions such as depth estimation and warnings to be disabled or enabled. Editable fields allow operations/fleet codes and other information to be stored on the device, making recording and traceability easier.

C.A.T Manager is also used to manage data logs created by eC.A.T4 and gC.A.T4 models.

Data logs from individual C.A.T devices are retrieved and stored in a local database. The export function enables users to review and analyze usage data or view the surveyed area in mapping services such as Google Earth.