OPTi Digital Hand Held Refractometer

IP65 Water Resistant and Made in the UK

Special features make measurements easy and reliable

Instrument Features

  1. Or scale equivalent
  2. ATC – automatic temperature compensation
  3. OPTi automatically switches to Brix displays with AG ATC to faciltate performance verification. 

 

UKAS CalibrationOPTi refractometers are supplied with a Certificate of Calibration as standard. OPTi refractometers are verified using UKAS Certified Reference Materials manufactured in accordance with EN ISO IEC 17025:2005.

Hand Held Refractometers

OPTi Digital Range – Industrial & Chemical

Single Scale Models

Code Type Scale Range Resolution Accuracy ATC
38-02 Brix 54 Sugar % (°Brix) 0-54 0.1 ±0.2 Bx
38-16 Hi RI 1.54 NTC Refractive Index (RI) 1.42-1.54 0.0001 ±0.0003 NONE
38-19
Brix 54 NTC Sugar % (°Brix) 0-54 0.1 ±0.2 NONE
38-20 RI 1.42 Refractive Index (RI) 1.33-1.42 0.0001 ±0.0003 Bx
38-A2 RI 1.54+ Refractive Index (RI) 1.33-1.54 0.0001 ±0.0003 Bx
38-B9 RI 1.54+ NTC Refractive Index (RI) 1.33-1.54 0.0001 ±0.0003 NONE
38-22 Starch 30 Starch % 0-30 0.1 ±0.2 Bx
38-23 Urea 40 % Urea (CRC data) 0-40 0.1 ±0.2 AUS32
38-28 Saline 28 Salinity (% NaCl) 0-28 0.1 ±0.2 NaCl
38-29 Diesel Exhaust Fluid % Urea (AUS-32) 0-40 0.1 ±0.2 AUS32
38-32 Hi RI 1.54 Refractive Index (RI) 1.42-1.54 0.0001 ±0.0003 Bx
38-34 Hi Brix 85 Sugar % (°Brix) 0-85 0.1 ±0.2 Bx

General Purpose Duo Models

Code Type   Scale Range Resolution Accuracy ATC
38-31 General Purpose C1 A
B
Sugar % (°Brix)
Refractive Index (RI) ATC
0-54
1.33-1.42
0.1
0.0001
±0.2
±0.0003
Bx
Bx
38-37 Chemical C2 A
B
Refractive Index (RI)
Temp °C (no ATC)
1.33-1.42
5-40°C
0.0001
0.1
±0.0003
±1
NONE
N/A
38-38
Chemical C3 A
B
Sugar % (°Brix)
Refractive Index
20-70
1.36-1.47
0.1
0.0001
±0.2
±0.0003
Bx
Bx
38-B1 Chemical C4+ A
B
Sugar % (°Brix)
Refractive Index (RI)
0-95
1.33-1.54
0.1
0.0001
±0.2
±0.0003
Bx
Bx
38-39 Biofuel A
B
Ethanol (v/v)
Sugar % (°Brix)
0-20
0-54
0.1
0.1
1
0.2
Eth
Bx

Heat Transfer Liquids

Code Type   Scale Range Resolution Accuracy ATC
38-70 Heat Transfer PG/C A
B
Propylene Glycol % by volume
Propylene Glycol °C Protection
(freezing point)
0-60
0 to -50
0.1
1
±0.4
±1
PG
PG
38-71 Heat Transfer EG/C A
B
Ethylene Glycol % by volume
Ethylene Glycol °C Protection
(freezing point)
0-60
0 to -50
0.1
1
±0.4
±1
EG
EG
38-72 Heat Transfer EG/PG A
B
Ethylene Glycol % by volume
Propylene Glycol % by volume
0-60
0-60
0.1
0.1
±0.4
±0.4
EG
PG
38-73
Heat Transfer PG/F A
B
Propylene Glycol °F Protection
Propylene Glycol % by volume
30 to -40
0-60
1
0.1
±1
±0.4
PG
PG
38-74 Heat Transfer EG/F A
B
Ethylene Glycol % by volume
Ethylene Glycol °F Protection
(freezing point)
0-60
30 to -40
0.1
1
±0.4
±1
EG
EG
38-81 Coolant A
B
°Brix
Refractive Index (RI)
0-18
1.33-1.38
0.1
0.0001
±0.2
±0.0003
Bx
Bx

Automotive

Code Type   Scale Range Resolution Accuracy ATC
38-61 Auto A1 A
B
°Brix
Ethylene Glycol °C Protection
(freezing point)
0-54
0 to -50
0.1
1
±0.2
±1
Bx
EG
38-62 Auto A2 A
B
°Brix
DEF
0-54
0-40
0.1
0.1
±0.2
±0.2
AUS32
AUS32
38-63 Auto A3 A
B
°Brix
Propylene Glycol °C Protection
(freezing point)
0-54
0 to -50
0.1
1
±0.2
±1
Bx
PG
38-65 Auto A4 DEF/C-EG A
B
DEF
Ethylene Glycol °C Protection
(freezing point)
0-40
0 to -50
0.1
1
±0.2
±1
AUS32
EG
38-66 Auto A5 DEF/F-EG A
B
DEF
Ethylene Glycol °F Protection
(freezing point)
0-40
30 to -40
0.1
1
±0.2
±1
AUS32
EG
38-67 Auto Antifreeze C A

B
Ethylene Glycol °C Protection
(freezing point)
Propylene Glycol °C Protection
(freezing point)
0 to -50

0 to -50
1

1
±1

±1
EG

PG
38-68 Auto Antifreeze F A

B
Ethylene Glycol °F Protection
(freezing point)
Propylene Glycol °F Protection
(freezing point)
30 to -40

30 to -40
1

1
±1

±1
EG

PG

Aviation

Code Type   Scale Range Resolution Accuracy ATC
38-83 Aviation A
B
Refractive Index (RI)
FSII DiEGME ATC
1.33-1.42
0.0 to 0.25
0.0001 0.01 ±0.0003
±0.02
NONE
Bx

OPTi Custom

In the event that a particular model not be listed in this website or scales unique to a particular product be required, an OPTi Custom may be offered. Please contact the Sales Team.

Contents & Warranty

Supply content User manuals¹ (English, French, German, Spanish, Italian & Brazilian-Portuguese) Certificate of Calibration & soft black protective case
Warranty (limited) 12-months
  1. PDF versions and additional languages are available for download

Accessories

OPTi Belt Pouch
Code Description
38-016 OPTi Belt Pouch

Full specifications common to all OPTi refractometers

NOTE: DEF is commonly used to describe a diesel exhaust fluid such as AdBlue®. DEF is also used to describe an aqueous urea solution scale for measuring diesel exhaust fluids such as AdBlue®. AdBlue® is a registered trademark of the VDA Verband der Automobilindustrie e.V.