new coleman ph meter features simple controls, 0.05 ph accuracy

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COLEMAN New Coleman pH Meter features simple controls, 0.05 pH accuracy Practical, precise pH measurement is easiest with Coleman's new Companion pH Meter. Here's why: ACCURACY: Within 0.05 pH. SIMPLICITY: Human-engineering pays off in greatest convenience. Three controls cover all instrument functions—only one control is needed for routine measurements. No uncertain push-buttons to fuss with. STABILITY: Zero-restoring circuit makes instrument completely drift-free. READABILITY: Widest practical scale ( 6 ^ inches) permits easy, direct reading to 0.02 pH. Mirror- backed panel permits easy, parallax-free reading. VERSATILITY: Measures both pH and milli-volts; ranges: 0-14 pH and 0-1400 mv. Simple accessories adapt instrument to Karl Fischer titrations and auto- matic temperature compensation in just a few sec- onds. Potentiometer or current type recorders plug directly into back panel. PRACTICALITY: Companion uses famous Coleman screw base glass and reference electrodes. No need to buy additional "small sample assemblies" . . . these electrodes require only 3.5 ml sample and can be used in containers as small as a 10 ml beaker. Acces- sory adapter permits use with alien electrodes. Line- operated (100-130 volts, 50/60 cycles) with full volt- age stabilization. ECONOMY: Realistically priced at $300.00. Find out how the simplified controls and advanced circuitry of the new Companion can help save money in your laboratory—ask for a demonstration, or write for a copy of Bulletin CB-267. COLEMAN INSTRUMENTS, INC., M A Y W O O D , ILLINOIS 18 C & E N O/ukv c^4i#ù&/iecStêbit/ aw OU ÎùtâTafàia toûfauù *tatàty oftmf acietteô

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Page 1: New Coleman pH Meter features simple controls, 0.05 pH accuracy

C O L E M A N

N e w Coleman pH Meter features simple controls, 0 .05 pH accuracy Practical, precise pH measurement is easiest with Coleman's new Companion pH Meter. Here's why: ACCURACY: Within 0.05 pH. SIMPLICITY: Human-engineering pays off in greatest convenience. Three controls cover all instrument functions—only one control is needed for routine measurements. No uncertain push-buttons to fuss with.

STABILITY: Zero-restoring circuit makes instrument completely drift-free. READABILITY: Widest practical scale ( 6 ^ inches) permits easy, direct reading to 0.02 pH. Mirror-backed panel permits easy, parallax-free reading.

VERSATILITY: Measures both pH and milli-volts; ranges: 0-14 pH and 0-1400 mv. Simple accessories adapt instrument to Karl Fischer titrations and auto­

matic temperature compensation in just a few sec­onds. Potentiometer or current type recorders plug directly into back panel. PRACTICALITY: Companion uses famous Coleman screw base glass and reference electrodes. No need to buy additional "small sample assemblies" . . . these electrodes require only 3.5 ml sample and can be used in containers as small as a 10 ml beaker. Acces­sory adapter permits use with alien electrodes. Line-operated (100-130 volts, 50 /60 cycles) with full volt­age stabilization. ECONOMY: Realistically priced at $300.00. Find out how the simplified controls and advanced circuitry of the new Companion can help save money in your laboratory—ask for a demonstration, or write for a copy of Bul le t in CB-267.

C O L E M A N I N S T R U M E N T S , I N C . , M A Y W O O D , I L L I N O I S

18 C & E N

O/ukv c^4i#ù&/iecStêbit/ aw OU ÎùtâTafàia toûfauù *tatàty oftmf acietteô