Esco Lexicon Instrukcja Użytkownika Pobierz pdf (Strona 4)

Ultra-low Temperature Upright Freezers

Superior Performance

Fast Pull Down

* Units were factory tested under controlled environmental conditions per Esco method. Esco does not guarantee identical results in the ﬁeld under differing conditions.

Original report available upon request. UUS-668A-1 units were used for all the tests above.

Fast Temperature Recovery After Door Opening

• Esco Lexicon

recovers temperature in minutes following a

1 min. door opening*. Fast recovery in temperature ensures

integrity of stored samples.

• Pull down time is the time required to bring down the

temperature of the ULT freezer from ambient to the set

temperature.

• Esco Lexicon

has a short pull down time which signiﬁes an

efcient refrigeration system*.

Pull Down Test at 20°C Ambient

Temperature (°C)

Ambient

Chamber

Time (Min.)

Excellent Uniformity

• Uniformity test measures the difference between the coldest

spot and warmest spot in the freezer chamber when the

freezer is operating at set temperature.

• Esco Lexicon

has excellent uniformity under normal

operating conditions*. This guarantees that all samples are

stored at or close to desired set temperature.

Uniformity Test at -80°C Cycle

Temperature (°C)

Time (Min.)

Extended Warm-up Time During a Power Failure

• Warm-up time measures the time taken for temperature

to rise up (from -80°C to -50°C) when the power is

interrupted.

• With a robust insulation system in place, Esco Lexicon

has

probably the longest warm-up time among the freezers

compared on the left*. Slower warm-up during an extended

power failure buys the user time for carrying out a back-up

plan.

Warm-up Time From -80°C to -50°C

Brand S Brand SL Brand H Brand R Brand F

Warm-up Time (minutes)

‐100.0

‐95.0

‐90.0

‐85.0

‐80.0

‐75.0

‐70.0

‐65.0

‐60.0

‐55.0

‐50.0

1

8

15

22

29

36

43

50

57

64

71

78

85

92

99

106

113

120

127

134

141

148

155

162

169

176

183

190

197

204

211

218

225

232

239

246

253

260

267

274

281

288

295

302

309

316

323

Temperature[°C]

Time(minutes)

TemperatureRecoveryGraph16PP02

CabLow

Temperature Recovery After 1 Minutes Door Opening

1 2 3 4 5 6 7 8 9 ... 15 16

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