Elcometer 331 Mk 2 Top TH Model Concrete Cover Meters

Elcometer 331 Mk2 Top TH Model Concrete Cover Meters

Product Description

The Elcometer 331 Mk 2 Top TH Model Concrete Cover Meters is an easy to use gauge that not only quickly and accurately identifies the location, orientation, depth and diameter of rebar, but also the potential for corrosion. Designed to meet IP65 this all-in-one rugged waterproof gauge can be used in the harshest of environments.

Fast and accurate:
- Locate and determine orientation of rebar quickly, easily & accurately.
Corrosion check:
- Check for potential corrosion of rebar using the same gauge.
Large memory:
- Holds up to 240,000 readings in linear or grid batches.
Large, easy to read backlit display:
- Graphical display clearly shows statistics, batches, graph plots and numerical readings
Interchangeable search heads and Half-Cell kits:
- Select from standard search head, narrow pitch search head, deep cover search head, borehole probe, Copper Half Cell Kit and Silver Half-Cell Kit.
Powerful Covermaster® Software:
- Ultimate data management tool to store cover & Half-Cell readings and produce professional reports quickly and easily.
Intuitive menus in multiple languages:
- Allows use straight out of the box
International bar sizes:
- User selectable bar sizes include metric, US Bar Numbers, ASTM/Canadian and Japanese for use anywhere in the world.
Rechargeable battery supply:
- Battery packs can be charged inside or outside the gauge.

Specifications

Elcometer 331² Gauges
Part Number	Description
W331B—2	Elcometer 331² Model B Covermeter (Supplied complete with Standard Search Head)
W331BH–2	Elcometer 331² Model BH Covermeter with Half Cell (Order search heads or Half-Cell probes separately)
W331SH–2	Elcometer 331² Model SH Covermeter with Half Cell (Order search heads or Half-Cell probes separately)
W331TH–2	Elcometer 331² Model TH Covermeter with Half Cell (Order search heads or Half-Cell probes separately)
W331THD-2	Elcometer 331² Model THD Covermeter with Half Cell (Order search heads or Half-Cell probes separately)
Elcometer 331²Search Heads & Half-Cell
TW33119124-1A	Elcometer 331²Standard Search Head
TW33119124-2A	Elcometer 331²Narrow Pitch Seach Head
TW33119171A	Elcometer 331² Deep Cover Search Head
TW33119223-1A	Elcometer 331² Borehole Probe 0 -40cm
TW33119223-2A	Elcometer 331²Borehole Probe 0 – 100cm
TW33119223-3A	Elcometer 331²Borehole Probe 0 – 16″
TW33119223-4A	Elcometer 331²Borehole Probe 0 40″
TW331CUKIT	Elcometer 331²Half Cell Probe Kit Cu/CuSO₄(Cannot be used with Model B)
TW331AGKIT	Elcometer 331²Half Cell Probe Kit Ag/AgCl (Cannot be used with Model B)
TW33119688-1	Elcometer 331²Half Cell Probe Cu/CuSO₄(Cannot be used with Model B)
TW33119688-2	Elcometer 331²Half Cell Probe Ag/AgCl (Cannot be used with Model B)
TW33120014D	Elcometer 331²High Tensile and Stainless Steel Dual search head (Can only be used with the Model THD)

Elcometer 331 Models
Description	B	BH	SH	TH	THD
Covermeter / Rebar location	•	•	•	•	•
Half Cell measurement	•	•	•	•
Rebar orientation	•	•	•	•	•
Depth of cover	•	•	•	•	•
Large cover (thickness) reading mm or inches	•	•	•	•	•
Large graphics display with backlight	•	•	•	•	•
Multiple language menu structure	•	•	•	•	•
signal strength bar	•	•	•	•	•
Interchangeable heads with LED & keypad	•	•	•	•	•
User selectable bar range sizes & numbers	•	•	•	•	•
Rugged waterproof case (IP65)	•	•	•	•	•
Adjustable beep volume & earphone socket	•	•	•	•	•
Measurement sound modes	•	•	•	•	•
Locate (tone increases as head approaches rebar)	•	•	•	•	•
Under Cover (tone only sound for low cover)	•	•	•	•	•
Maxpip (tone only as head passes rebar centre)	•	•	•	•	•
Half Cell capability	•	•	•	•
Large half cell reading mV	•	•	•	•
Autosize mode bar diameter determination	•	•	•
Orthogonal mode bar diameter determination	•	•	•
RS232 Output – direct to printer or PC	•	•	•
EDTS Excel link software	•	•	•
Covermaster software	•	•	•
Statistics	•	•	•
Minimum & maximum cover limits	•	•	•
Date & time	•	•	•
Memory	•	•	•
Linear batch memory	No Memory	No Memory	10 Linear batches of 1,000 readings each	Up to 200 batches of 1,000 readings	Up to 200 batches of 1,000 readings
Grid batch memory	Up to 240,000 readings	Up to 240,000 readings
User certified batch size	•	•
Graphics Plot	•	•
Threshold plot	•	•
Stainless Steel measurement mode	•
Bar dimension range	Click on the Bar Dimension Tab at the top for a range of Bar Dimensions
Rechargeable power supply	7.4V lithium ion battery pack provides up to 32 hours of continuous use (20 hrs if backlight is on). Rechargeable in 4 hours either inside or outside the gauge using an external charger.
Maximum operating temperature	50°C
Unit dimensions	230 x 130 x 125mm
Unit weight	1.54kg

Data Sheet

Elcometer 331 Mk 2 Top TH Model Concrete Cover Meters Data Sheet

Standards

The Elcometer 331 Mk 2 Top TH Model Concrete Cover Meters can be used in accordance with the following Standards:

ACI 318
ASTM C876
BS 1881:201
BS 1881:204
BS 8110
CP 110
DGZfP:B2
DGZfP:B3
DIN 1045
EC 2
SIA 162
SIS 2006
TR60
UNI10174

Accessories

	Standard Search Head Design to meet most of your measurement requirements.
	Part Number	TW33119124-1A
	Range	40mm bar – 15mm to 95mm 8mm bar – 8mm to 70mm
	Dimensions	155 x 88 x 42mm
	Sensing area	120 x 60mm
	Narrow Pitch Search Head Accurately measures the cover thickness when the gaps (pitch) between each of the rebars are close together.
	Part Number	TW33119124-2A
	Range	40mm bar – 8mm to 80mm 8mm bar – 5mm to 60mm
	Dimensions	155 x 88 x 42mm
	Sensing area	120 x 60mm
	Deep Cover Search Head The ideal search head for accurately measuring rebars that are deep within the structure.
	Part Number	TW33119171A
	Range	40mm bar – 35mm to 180mm 8mm bar – 25mm to 160mm
	Dimensions	170 x 94 x 54mm
	Sensing area	160 x 80mm
	Dual Search Head for high tensile and stainless steels The search head specifically designed to locate high tensile and stainless steel.
	Part Number	TW33120014D
	Range	40mm bar – 35mm to 180mm 8mm bar – 25mm to 160mm
	Dimensions	170 x 94 x 54mm
	Sensing area	160 x 80mm
	Borehole Probe The solution for locating tendon ducts and multiple layers of rebar lying deep within the concrete.
	Part Number
	Metric	Imperial
	TW33119223-1A Short	TW33119223-3A Short
	TW33119223-2A Long	TW33119223-4A Long
	Measurement depth	Short Probe: 0 – 40cm Long Probe: 0 – 100cm
	Approximate detection ranges	Tendon duct (70mm): up to 90mm
	Half-Cell Kit Consisting of either a copper electrode in a copper sulphate solution or a silver electrode in a sodium chloride solution, each half cell is a sealed unit – no need to mix chemicals. Supplied with a 25m / 80′ cable, every half-cell probe is guaranteed for 5 years.
	Description	Part Number
	Copper/Copper Sulphate	TW331CUKIT
	Silver/Silver Chloride	TW331AGKIT
	Extension Cable 100m / 325ft The extension cable for use with the half-cell kits gives the flexibility to take readings in difficult to reach areas.
	Part Number	TW33119683
	Verification Block The verification block allows the user to check the calibration of their gauge in order to ensure maximum measurement accuracy.
	Part Number	TW33119218
	Extension Arm Kit This kit allows the user to scan bridge decks and floor areas using the hand-held search heads from a standing position. Both the standard or narrow pitch search head can be attached to the extension arm.
	Part Number	TW33119222

Bar Diameter

Bar Size Dimensions
Metric		US Bar		ASTM/Canadian		Japanese
Bar Size	Diam. (mm)	Bar Size	Diam. (Inch)	Bar Size	Diam. (mm²)	Bar Size	Diam. (mm)
5	5	#2	0.25	10M	100	6	6
5.5	5.5	#3	0.375	15M	200	10	10
6	6	#4	0.5	20M	300	13	13
7	7	#5	0.625	25M	500	16	16
8	8	#6	0.75	30M	700	19	19
9	9	#7	0.875	35M	1000	22	22
10	10	#8	1	45M	1500	25	25
11	11	#9	1.125	55M	2500	29	29
12	12	#10	1.25			32	32
14	14	#11	1.375			35	35
16	16	#12	1.5			38	38
18	18	#13	1.625			41	41
20	20	#14	1.75			44	44
22	22	#15	1.875			48	48
25	25	#16	2			51	51
28	28	#18	2.25			57	57
32	32
36	36
40	40
44	44
50	50