Elcometer 331 SH Covermeter
The Elcometer 331 SH is a robust surface hardness tester designed for precise measurement in various applications. Its user-friendly interface and durable construction make it ideal for construction professionals seeking reliability and accuracy in their assessments.
Item ID: 50001137
Reference: 199010
Basic Dimensions
Weight (kg)1.6
Height (mm)125
Length (mm)230
Width (mm)130
Convenience Features
Features
- Single handed operation
- Memory and data logging with data output to PC or direct to printer
- Links to CoverMaster™ software
- Full range of interchangeable search heads, borehole probe & half-cell probes available to suit the requirements
- Measures the condition and potential corrosion of rebars and steel structures within concrete quickly in Half-Cell Mode
- Locate and determine orientation of rebar quickly, easily & accurately in Cover Mode
- Up to 1,000 readings can be stored on the gauge for detailed reporting
Power Source
Power Source / Fuel TypeBattery
Battery LifeUp to 32 hours continuous use without backlight. Up to 20 hours with backlight
Battery OptionsStandard replaceable battery pack
Battery TypeLithium
Voltage (V)9
Safety Information
Operating Temperature0 to 50°C
Protection Class (IP)65
Temperature - Operating (°C)0 to +50
Temperature - Storage (°C)−10 to +60
Drop Shock & VibrationDesigned to withstand typical site handling and vibration
Technical Dimensions
Depth200mm
Technical Specifications
Accuracy
- Standard Head: up to 65 mm (2.6 inch) depth: ±2 mm (0.1 inch) // over 70 mm (2.8 inch) depth: ±3%
- Narrow Pitch Head: up to 45 mm (1.75 inch) depth: ±1 mm (0.05 inch) // over 50 mm (2 inch) depth: ±2 mm (0.1 inch)
- Deep Cover Head: up to 65 mm (2.6 inch) depth: ±2 mm (0.1 inch) // over 70 mm (2.8 inch) depth: ±3%
- Half-Cell Mode: ±5 mV
AntennaMagnetic induction coil (probe‑specific)
ComplianceBS1881:204, ASTM C876, DGZfP:B2, DGZfP:B3, TR60, UN110174
Humidity95% RH, non‑condensing
MaterialsHigh impact ABS
Memory10 linear batches of 1,000 readings each
Purpose/Made forThe Elcometer 331 is an all in one gauge that combines the rebar locator, concrete covermeter and half-cell measurement, making site visits quicker and more convenient.
Range
- Standard Head: 40 mm (1.6 inch) bar: 17 mm to 100 mm (0.65 inch to 4 inch) // 8 mm (0.3 inch) bar: 9 mm to 75 mm (0.35 inch to 3 inch)
- Narrow Pitch Head: 40 mm (1.6 inch) bar: 9 mm to 75 mm (0.35 inch to 3 inch) // 8 mm (0.3 inch) bar: 5 mm to 55 mm (0.2 inch to 2.2 inch)
- Deep Cover Head: 40 mm (1.6 inch) bar: 50 mm to 200 mm (2 inch to 8 inch) // 8 mm (0.3 inch) bar: 25 mm to 150 mm (1 inch to 6 inch)
- Half-Cell Mode: -999 mV to +999 mV
Resolution2 Rebound Number(s)
SensorsInterchangeable probe heads
Time - Operating / Run (mins)1,920
DisplayLCD (128 pixels x 64 pixels)
Data InterfaceRS232
Data Transfer / CommunicationsRS232 Output - direct to printer or PC
IntervalUser‑selectable measurement intervals
Magnetic FieldLow‑frequency magnetic induction
Pitch Resolution
- Standard Head: 16 mm (#5) diameter bar at 50 mm (2 inch) depth of cover; pitch >75 mm (3 inch)
- Narrow Pitch Head: 10 mm (#3) diameter bar at 30 mm (1.2 inch) depth of cover; pitch >55 mm (2.15 inch)
- Deep Cover Head: 16 mm (#5) diameter bar at 100 mm (4 inch) depth of cover; pitch >125 mm (5 inch)
Stability10 mV with 3 μA load (Half-cell probes)
